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Finding the Fourth Proportional to 57,479.52, 86,225.28 and 15,926.56

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Solution

The fourth proportional to 57,479.52, 86,225.28 and 15,926.56 is: 23,891.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,479.52 : 86,225.28 = 15,926.56 : x
  2. Step 2: Convert to fraction form
    57,479.52/86,225.28 = 15,926.56/x
  3. Step 3: Cross multiply
    57,479.52x = 86,225.28 × 15,926.56
  4. Step 4: Simplify right side
    57,479.52x = 1,373,272,095.44
  5. Step 5: Solve for x
    x = 1,373,272,095.44/57,479.52
  6. Step 6: Final answer
    x = 23,891.50

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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.