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Finding the Fourth Proportional to 25,815.70, 38,727.59 and 11,024.70

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Solution

The fourth proportional to 25,815.70, 38,727.59 and 11,024.70 is: 16,538.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,815.70 : 38,727.59 = 11,024.70 : x
  2. Step 2: Convert to fraction form
    25,815.70/38,727.59 = 11,024.70/x
  3. Step 3: Cross multiply
    25,815.70x = 38,727.59 × 11,024.70
  4. Step 4: Simplify right side
    25,815.70x = 426,960,061.47
  5. Step 5: Solve for x
    x = 426,960,061.47/25,815.70
  6. Step 6: Final answer
    x = 16,538.78

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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.