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Finding the Fourth Proportional to 25,615.31, 38,421.41 and 9,601.69

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Solution

The fourth proportional to 25,615.31, 38,421.41 and 9,601.69 is: 14,401.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,615.31 : 38,421.41 = 9,601.69 : x
  2. Step 2: Convert to fraction form
    25,615.31/38,421.41 = 9,601.69/x
  3. Step 3: Cross multiply
    25,615.31x = 38,421.41 × 9,601.69
  4. Step 4: Simplify right side
    25,615.31x = 368,910,468.18
  5. Step 5: Solve for x
    x = 368,910,468.18/25,615.31
  6. Step 6: Final answer
    x = 14,401.95

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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.