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Finding the Fourth Proportional to 7,358,989,984.20, 11,038,484,976.30 and 7,358,989,984.20

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Solution

The fourth proportional to 7,358,989,984.20, 11,038,484,976.30 and 7,358,989,984.20 is: 11,038,484,976.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,358,989,984.20 : 11,038,484,976.30 = 7,358,989,984.20 : x
  2. Step 2: Convert to fraction form
    7,358,989,984.20/11,038,484,976.30 = 7,358,989,984.20/x
  3. Step 3: Cross multiply
    7,358,989,984.20x = 11,038,484,976.30 × 7,358,989,984.20
  4. Step 4: Simplify right side
    7,358,989,984.20x = 81,232,100,381,333,864,448
  5. Step 5: Solve for x
    x = 81,232,100,381,333,864,448/7,358,989,984.20
  6. Step 6: Final answer
    x = 11,038,484,976.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.