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Finding the Fourth Proportional to 42,059.70, 63,088.13 and 10,469.70

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Solution

The fourth proportional to 42,059.70, 63,088.13 and 10,469.70 is: 15,704.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,059.70 : 63,088.13 = 10,469.70 : x
  2. Step 2: Convert to fraction form
    42,059.70/63,088.13 = 10,469.70/x
  3. Step 3: Cross multiply
    42,059.70x = 63,088.13 × 10,469.70
  4. Step 4: Simplify right side
    42,059.70x = 660,513,794.66
  5. Step 5: Solve for x
    x = 660,513,794.66/42,059.70
  6. Step 6: Final answer
    x = 15,704.20

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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.