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Finding the Fourth Proportional to 34,399.80, 51,615.90 and 14,695.20

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Solution

The fourth proportional to 34,399.80, 51,615.90 and 14,695.20 is: 22,049.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,399.80 : 51,615.90 = 14,695.20 : x
  2. Step 2: Convert to fraction form
    34,399.80/51,615.90 = 14,695.20/x
  3. Step 3: Cross multiply
    34,399.80x = 51,615.90 × 14,695.20
  4. Step 4: Simplify right side
    34,399.80x = 758,505,973.68
  5. Step 5: Solve for x
    x = 758,505,973.68/34,399.80
  6. Step 6: Final answer
    x = 22,049.72

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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.