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Finding the Fourth Proportional to 48,309.20, 72,463.80 and 26,190.80

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Solution

The fourth proportional to 48,309.20, 72,463.80 and 26,190.80 is: 39,286.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,309.20 : 72,463.80 = 26,190.80 : x
  2. Step 2: Convert to fraction form
    48,309.20/72,463.80 = 26,190.80/x
  3. Step 3: Cross multiply
    48,309.20x = 72,463.80 × 26,190.80
  4. Step 4: Simplify right side
    48,309.20x = 1,897,884,893.04
  5. Step 5: Solve for x
    x = 1,897,884,893.04/48,309.20
  6. Step 6: Final answer
    x = 39,286.20

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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.