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Finding the Fourth Proportional to 25,287.55, 37,927.96 and 7,517.88

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Solution

The fourth proportional to 25,287.55, 37,927.96 and 7,517.88 is: 11,275.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,287.55 : 37,927.96 = 7,517.88 : x
  2. Step 2: Convert to fraction form
    25,287.55/37,927.96 = 7,517.88/x
  3. Step 3: Cross multiply
    25,287.55x = 37,927.96 × 7,517.88
  4. Step 4: Simplify right side
    25,287.55x = 285,137,833.13
  5. Step 5: Solve for x
    x = 285,137,833.13/25,287.55
  6. Step 6: Final answer
    x = 11,275.82

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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.