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Finding the Fourth Proportional to 28,025,331.60, 42,037,997.40 and 28,025,331.60

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Solution

The fourth proportional to 28,025,331.60, 42,037,997.40 and 28,025,331.60 is: 42,037,997.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025,331.60 : 42,037,997.40 = 28,025,331.60 : x
  2. Step 2: Convert to fraction form
    28,025,331.60/42,037,997.40 = 28,025,331.60/x
  3. Step 3: Cross multiply
    28,025,331.60x = 42,037,997.40 × 28,025,331.60
  4. Step 4: Simplify right side
    28,025,331.60x = 1,178,128,816,934,937.75
  5. Step 5: Solve for x
    x = 1,178,128,816,934,937.75/28,025,331.60
  6. Step 6: Final answer
    x = 42,037,997.40

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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.