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Finding the Fourth Proportional to 61,215.60, 91,821.24 and 24,279.60

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Solution

The fourth proportional to 61,215.60, 91,821.24 and 24,279.60 is: 36,418.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,215.60 : 91,821.24 = 24,279.60 : x
  2. Step 2: Convert to fraction form
    61,215.60/91,821.24 = 24,279.60/x
  3. Step 3: Cross multiply
    61,215.60x = 91,821.24 × 24,279.60
  4. Step 4: Simplify right side
    61,215.60x = 2,229,382,978.70
  5. Step 5: Solve for x
    x = 2,229,382,978.70/61,215.60
  6. Step 6: Final answer
    x = 36,418.54

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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.