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Finding the Fourth Proportional to 25,803.02, 38,721.79 and 9,387.02

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Solution

The fourth proportional to 25,803.02, 38,721.79 and 9,387.02 is: 14,086.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,803.02 : 38,721.79 = 9,387.02 : x
  2. Step 2: Convert to fraction form
    25,803.02/38,721.79 = 9,387.02/x
  3. Step 3: Cross multiply
    25,803.02x = 38,721.79 × 9,387.02
  4. Step 4: Simplify right side
    25,803.02x = 363,482,217.17
  5. Step 5: Solve for x
    x = 363,482,217.17/25,803.02
  6. Step 6: Final answer
    x = 14,086.81

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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.