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Finding the Fourth Proportional to 60,348.48, 90,531.19 and 18,223.79

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Solution

The fourth proportional to 60,348.48, 90,531.19 and 18,223.79 is: 27,338.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,348.48 : 90,531.19 = 18,223.79 : x
  2. Step 2: Convert to fraction form
    60,348.48/90,531.19 = 18,223.79/x
  3. Step 3: Cross multiply
    60,348.48x = 90,531.19 × 18,223.79
  4. Step 4: Simplify right side
    60,348.48x = 1,649,821,244.55
  5. Step 5: Solve for x
    x = 1,649,821,244.55/60,348.48
  6. Step 6: Final answer
    x = 27,338.24

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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.