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Finding the Fourth Proportional to 48,757.57, 73,155.76 and 18,763.76

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Solution

The fourth proportional to 48,757.57, 73,155.76 and 18,763.76 is: 28,153.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,757.57 : 73,155.76 = 18,763.76 : x
  2. Step 2: Convert to fraction form
    48,757.57/73,155.76 = 18,763.76/x
  3. Step 3: Cross multiply
    48,757.57x = 73,155.76 × 18,763.76
  4. Step 4: Simplify right side
    48,757.57x = 1,372,676,744.86
  5. Step 5: Solve for x
    x = 1,372,676,744.86/48,757.57
  6. Step 6: Final answer
    x = 28,153.10

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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.