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Finding the Fourth Proportional to 48,062.40, 72,151.20 and 27,019.20

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Solution

The fourth proportional to 48,062.40, 72,151.20 and 27,019.20 is: 40,561.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,062.40 : 72,151.20 = 27,019.20 : x
  2. Step 2: Convert to fraction form
    48,062.40/72,151.20 = 27,019.20/x
  3. Step 3: Cross multiply
    48,062.40x = 72,151.20 × 27,019.20
  4. Step 4: Simplify right side
    48,062.40x = 1,949,467,703.04
  5. Step 5: Solve for x
    x = 1,949,467,703.04/48,062.40
  6. Step 6: Final answer
    x = 40,561.18

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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.