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Finding the Fourth Proportional to 48,884.76, 67,468.18 and 30,981.38

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Solution

The fourth proportional to 48,884.76, 67,468.18 and 30,981.38 is: 42,758.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,884.76 : 67,468.18 = 30,981.38 : x
  2. Step 2: Convert to fraction form
    48,884.76/67,468.18 = 30,981.38/x
  3. Step 3: Cross multiply
    48,884.76x = 67,468.18 × 30,981.38
  4. Step 4: Simplify right side
    48,884.76x = 2,090,257,322.49
  5. Step 5: Solve for x
    x = 2,090,257,322.49/48,884.76
  6. Step 6: Final answer
    x = 42,758.87

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