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Finding the Fourth Proportional to 16,902.31, 25,354.95 and 4,422.28

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Solution

The fourth proportional to 16,902.31, 25,354.95 and 4,422.28 is: 6,633.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,902.31 : 25,354.95 = 4,422.28 : x
  2. Step 2: Convert to fraction form
    16,902.31/25,354.95 = 4,422.28/x
  3. Step 3: Cross multiply
    16,902.31x = 25,354.95 × 4,422.28
  4. Step 4: Simplify right side
    16,902.31x = 112,126,688.29
  5. Step 5: Solve for x
    x = 112,126,688.29/16,902.31
  6. Step 6: Final answer
    x = 6,633.81

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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.