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Finding the Fourth Proportional to 48,272.80, 72,409.20 and 41,591.20

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Solution

The fourth proportional to 48,272.80, 72,409.20 and 41,591.20 is: 62,386.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,272.80 : 72,409.20 = 41,591.20 : x
  2. Step 2: Convert to fraction form
    48,272.80/72,409.20 = 41,591.20/x
  3. Step 3: Cross multiply
    48,272.80x = 72,409.20 × 41,591.20
  4. Step 4: Simplify right side
    48,272.80x = 3,011,585,519.04
  5. Step 5: Solve for x
    x = 3,011,585,519.04/48,272.80
  6. Step 6: Final answer
    x = 62,386.80

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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.