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Finding the Fourth Proportional to 25,957.13, 38,942.17 and 7,489.13

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Solution

The fourth proportional to 25,957.13, 38,942.17 and 7,489.13 is: 11,235.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,957.13 : 38,942.17 = 7,489.13 : x
  2. Step 2: Convert to fraction form
    25,957.13/38,942.17 = 7,489.13/x
  3. Step 3: Cross multiply
    25,957.13x = 38,942.17 × 7,489.13
  4. Step 4: Simplify right side
    25,957.13x = 291,642,760.18
  5. Step 5: Solve for x
    x = 291,642,760.18/25,957.13
  6. Step 6: Final answer
    x = 11,235.56

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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.