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Finding the Fourth Proportional to 48,860.04, 67,428.36 and 27,638.88

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Solution

The fourth proportional to 48,860.04, 67,428.36 and 27,638.88 is: 38,142.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,860.04 : 67,428.36 = 27,638.88 : x
  2. Step 2: Convert to fraction form
    48,860.04/67,428.36 = 27,638.88/x
  3. Step 3: Cross multiply
    48,860.04x = 67,428.36 × 27,638.88
  4. Step 4: Simplify right side
    48,860.04x = 1,863,644,350.64
  5. Step 5: Solve for x
    x = 1,863,644,350.64/48,860.04
  6. Step 6: Final answer
    x = 38,142.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.