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Finding the Fourth Proportional to 25,143.80, 37,691.70 and 9,344.60

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Solution

The fourth proportional to 25,143.80, 37,691.70 and 9,344.60 is: 14,007.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,143.80 : 37,691.70 = 9,344.60 : x
  2. Step 2: Convert to fraction form
    25,143.80/37,691.70 = 9,344.60/x
  3. Step 3: Cross multiply
    25,143.80x = 37,691.70 × 9,344.60
  4. Step 4: Simplify right side
    25,143.80x = 352,213,859.82
  5. Step 5: Solve for x
    x = 352,213,859.82/25,143.80
  6. Step 6: Final answer
    x = 14,007.98

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.