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Finding the Fourth Proportional to 48,976.80, 73,465.20 and 25,648.80

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Solution

The fourth proportional to 48,976.80, 73,465.20 and 25,648.80 is: 38,473.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,976.80 : 73,465.20 = 25,648.80 : x
  2. Step 2: Convert to fraction form
    48,976.80/73,465.20 = 25,648.80/x
  3. Step 3: Cross multiply
    48,976.80x = 73,465.20 × 25,648.80
  4. Step 4: Simplify right side
    48,976.80x = 1,884,294,221.76
  5. Step 5: Solve for x
    x = 1,884,294,221.76/48,976.80
  6. Step 6: Final answer
    x = 38,473.20

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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.