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Finding the Fourth Proportional to 29,160.76, 43,748.07 and 9,439.31

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Solution

The fourth proportional to 29,160.76, 43,748.07 and 9,439.31 is: 14,161.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,160.76 : 43,748.07 = 9,439.31 : x
  2. Step 2: Convert to fraction form
    29,160.76/43,748.07 = 9,439.31/x
  3. Step 3: Cross multiply
    29,160.76x = 43,748.07 × 9,439.31
  4. Step 4: Simplify right side
    29,160.76x = 412,951,625.21
  5. Step 5: Solve for x
    x = 412,951,625.21/29,160.76
  6. Step 6: Final answer
    x = 14,161.21

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1.5x scale

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.