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Finding the Fourth Proportional to 8,732.68, 12,042.68 and 5,744.79

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Solution

The fourth proportional to 8,732.68, 12,042.68 and 5,744.79 is: 7,922.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,732.68 : 12,042.68 = 5,744.79 : x
  2. Step 2: Convert to fraction form
    8,732.68/12,042.68 = 5,744.79/x
  3. Step 3: Cross multiply
    8,732.68x = 12,042.68 × 5,744.79
  4. Step 4: Simplify right side
    8,732.68x = 69,182,638.91
  5. Step 5: Solve for x
    x = 69,182,638.91/8,732.68
  6. Step 6: Final answer
    x = 7,922.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.