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Finding the Fourth Proportional to 48,296.64, 72,456.78 and 39,020.70

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Solution

The fourth proportional to 48,296.64, 72,456.78 and 39,020.70 is: 58,540.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,296.64 : 72,456.78 = 39,020.70 : x
  2. Step 2: Convert to fraction form
    48,296.64/72,456.78 = 39,020.70/x
  3. Step 3: Cross multiply
    48,296.64x = 72,456.78 × 39,020.70
  4. Step 4: Simplify right side
    48,296.64x = 2,827,314,275.35
  5. Step 5: Solve for x
    x = 2,827,314,275.35/48,296.64
  6. Step 6: Final answer
    x = 58,540.60

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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.