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Finding the Fourth Proportional to 57,324.90, 85,987.89 and 17,344.20

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Solution

The fourth proportional to 57,324.90, 85,987.89 and 17,344.20 is: 26,016.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,324.90 : 85,987.89 = 17,344.20 : x
  2. Step 2: Convert to fraction form
    57,324.90/85,987.89 = 17,344.20/x
  3. Step 3: Cross multiply
    57,324.90x = 85,987.89 × 17,344.20
  4. Step 4: Simplify right side
    57,324.90x = 1,491,391,161.74
  5. Step 5: Solve for x
    x = 1,491,391,161.74/57,324.90
  6. Step 6: Final answer
    x = 26,016.46

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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.