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Finding the Fourth Proportional to 39,666.75, 59,500.17 and 11,964.75

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Solution

The fourth proportional to 39,666.75, 59,500.17 and 11,964.75 is: 17,947.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,666.75 : 59,500.17 = 11,964.75 : x
  2. Step 2: Convert to fraction form
    39,666.75/59,500.17 = 11,964.75/x
  3. Step 3: Cross multiply
    39,666.75x = 59,500.17 × 11,964.75
  4. Step 4: Simplify right side
    39,666.75x = 711,904,659.01
  5. Step 5: Solve for x
    x = 711,904,659.01/39,666.75
  6. Step 6: Final answer
    x = 17,947.14

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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.