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Finding the Fourth Proportional to 71,732.56, 107,598.48 and 18,424.48

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Solution

The fourth proportional to 71,732.56, 107,598.48 and 18,424.48 is: 27,636.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,732.56 : 107,598.48 = 18,424.48 : x
  2. Step 2: Convert to fraction form
    71,732.56/107,598.48 = 18,424.48/x
  3. Step 3: Cross multiply
    71,732.56x = 107,598.48 × 18,424.48
  4. Step 4: Simplify right side
    71,732.56x = 1,982,446,042.79
  5. Step 5: Solve for x
    x = 1,982,446,042.79/71,732.56
  6. Step 6: Final answer
    x = 27,636.63

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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.