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Finding the Fourth Proportional to 7,340,119.20, 10,989,183.60 and 7,340,119.20

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Solution

The fourth proportional to 7,340,119.20, 10,989,183.60 and 7,340,119.20 is: 10,989,183.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340,119.20 : 10,989,183.60 = 7,340,119.20 : x
  2. Step 2: Convert to fraction form
    7,340,119.20/10,989,183.60 = 7,340,119.20/x
  3. Step 3: Cross multiply
    7,340,119.20x = 10,989,183.60 × 7,340,119.20
  4. Step 4: Simplify right side
    7,340,119.20x = 80,661,917,534,685.12
  5. Step 5: Solve for x
    x = 80,661,917,534,685.12/7,340,119.20
  6. Step 6: Final answer
    x = 10,989,183.60

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Double scale
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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.