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Finding the Fourth Proportional to 18,911,232,003.70, 28,366,848,005.55 and 18,911,232,003.70

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Solution

The fourth proportional to 18,911,232,003.70, 28,366,848,005.55 and 18,911,232,003.70 is: 28,366,848,005.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,911,232,003.70 : 28,366,848,005.55 = 18,911,232,003.70 : x
  2. Step 2: Convert to fraction form
    18,911,232,003.70/28,366,848,005.55 = 18,911,232,003.70/x
  3. Step 3: Cross multiply
    18,911,232,003.70x = 28,366,848,005.55 × 18,911,232,003.70
  4. Step 4: Simplify right side
    18,911,232,003.70x = 536,452,043,846,650,691,584
  5. Step 5: Solve for x
    x = 536,452,043,846,650,691,584/18,911,232,003.70
  6. Step 6: Final answer
    x = 28,366,848,005.55

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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.