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Finding the Fourth Proportional to 29,038.99, 43,553.29 and 7,691.85

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Solution

The fourth proportional to 29,038.99, 43,553.29 and 7,691.85 is: 11,536.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,038.99 : 43,553.29 = 7,691.85 : x
  2. Step 2: Convert to fraction form
    29,038.99/43,553.29 = 7,691.85/x
  3. Step 3: Cross multiply
    29,038.99x = 43,553.29 × 7,691.85
  4. Step 4: Simplify right side
    29,038.99x = 335,005,373.69
  5. Step 5: Solve for x
    x = 335,005,373.69/29,038.99
  6. Step 6: Final answer
    x = 11,536.40

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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.