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Finding the Fourth Proportional to 29,921.80, 44,882.70 and 8,862.60

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Solution

The fourth proportional to 29,921.80, 44,882.70 and 8,862.60 is: 13,293.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,921.80 : 44,882.70 = 8,862.60 : x
  2. Step 2: Convert to fraction form
    29,921.80/44,882.70 = 8,862.60/x
  3. Step 3: Cross multiply
    29,921.80x = 44,882.70 × 8,862.60
  4. Step 4: Simplify right side
    29,921.80x = 397,777,417.02
  5. Step 5: Solve for x
    x = 397,777,417.02/29,921.80
  6. Step 6: Final answer
    x = 13,293.90

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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.