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Finding the Fourth Proportional to 61,143.20, 91,714.80 and 24,207.20

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Solution

The fourth proportional to 61,143.20, 91,714.80 and 24,207.20 is: 36,310.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,143.20 : 91,714.80 = 24,207.20 : x
  2. Step 2: Convert to fraction form
    61,143.20/91,714.80 = 24,207.20/x
  3. Step 3: Cross multiply
    61,143.20x = 91,714.80 × 24,207.20
  4. Step 4: Simplify right side
    61,143.20x = 2,220,158,506.56
  5. Step 5: Solve for x
    x = 2,220,158,506.56/61,143.20
  6. Step 6: Final answer
    x = 36,310.80

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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.