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Finding the Fourth Proportional to 29,129.80, 43,699.02 and 9,404.68

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Solution

The fourth proportional to 29,129.80, 43,699.02 and 9,404.68 is: 14,108.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,129.80 : 43,699.02 = 9,404.68 : x
  2. Step 2: Convert to fraction form
    29,129.80/43,699.02 = 9,404.68/x
  3. Step 3: Cross multiply
    29,129.80x = 43,699.02 × 9,404.68
  4. Step 4: Simplify right side
    29,129.80x = 410,975,299.41
  5. Step 5: Solve for x
    x = 410,975,299.41/29,129.80
  6. Step 6: Final answer
    x = 14,108.41

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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.