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Finding the Fourth Proportional to 29,980.92, 44,963.54 and 8,915.29

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Solution

The fourth proportional to 29,980.92, 44,963.54 and 8,915.29 is: 13,370.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,980.92 : 44,963.54 = 8,915.29 : x
  2. Step 2: Convert to fraction form
    29,980.92/44,963.54 = 8,915.29/x
  3. Step 3: Cross multiply
    29,980.92x = 44,963.54 × 8,915.29
  4. Step 4: Simplify right side
    29,980.92x = 400,862,998.53
  5. Step 5: Solve for x
    x = 400,862,998.53/29,980.92
  6. Step 6: Final answer
    x = 13,370.60

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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.