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Finding the Fourth Proportional to 14,915.92, 22,359.28 and 6,158.20

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Solution

The fourth proportional to 14,915.92, 22,359.28 and 6,158.20 is: 9,231.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,915.92 : 22,359.28 = 6,158.20 : x
  2. Step 2: Convert to fraction form
    14,915.92/22,359.28 = 6,158.20/x
  3. Step 3: Cross multiply
    14,915.92x = 22,359.28 × 6,158.20
  4. Step 4: Simplify right side
    14,915.92x = 137,692,918.10
  5. Step 5: Solve for x
    x = 137,692,918.10/14,915.92
  6. Step 6: Final answer
    x = 9,231.27

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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.