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Finding the Fourth Proportional to 25,807.52, 38,711.28 and 9,392.80

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Solution

The fourth proportional to 25,807.52, 38,711.28 and 9,392.80 is: 14,089.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,807.52 : 38,711.28 = 9,392.80 : x
  2. Step 2: Convert to fraction form
    25,807.52/38,711.28 = 9,392.80/x
  3. Step 3: Cross multiply
    25,807.52x = 38,711.28 × 9,392.80
  4. Step 4: Simplify right side
    25,807.52x = 363,607,310.78
  5. Step 5: Solve for x
    x = 363,607,310.78/25,807.52
  6. Step 6: Final answer
    x = 14,089.20

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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.