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Finding the Fourth Proportional to 48,651.17, 67,132.64 and 28,503.43

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Solution

The fourth proportional to 48,651.17, 67,132.64 and 28,503.43 is: 39,331.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,651.17 : 67,132.64 = 28,503.43 : x
  2. Step 2: Convert to fraction form
    48,651.17/67,132.64 = 28,503.43/x
  3. Step 3: Cross multiply
    48,651.17x = 67,132.64 × 28,503.43
  4. Step 4: Simplify right side
    48,651.17x = 1,913,510,408.38
  5. Step 5: Solve for x
    x = 1,913,510,408.38/48,651.17
  6. Step 6: Final answer
    x = 39,331.24

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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.