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Finding the Fourth Proportional to 29,174.80, 43,711.80 and 13,560.40

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Solution

The fourth proportional to 29,174.80, 43,711.80 and 13,560.40 is: 20,317.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,174.80 : 43,711.80 = 13,560.40 : x
  2. Step 2: Convert to fraction form
    29,174.80/43,711.80 = 13,560.40/x
  3. Step 3: Cross multiply
    29,174.80x = 43,711.80 × 13,560.40
  4. Step 4: Simplify right side
    29,174.80x = 592,749,492.72
  5. Step 5: Solve for x
    x = 592,749,492.72/29,174.80
  6. Step 6: Final answer
    x = 20,317.17

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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.