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Finding the Fourth Proportional to 44,861.04, 67,298.85 and 13,689

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Solution

The fourth proportional to 44,861.04, 67,298.85 and 13,689 is: 20,535.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,861.04 : 67,298.85 = 13,689 : x
  2. Step 2: Convert to fraction form
    44,861.04/67,298.85 = 13,689/x
  3. Step 3: Cross multiply
    44,861.04x = 67,298.85 × 13,689
  4. Step 4: Simplify right side
    44,861.04x = 921,253,957.65
  5. Step 5: Solve for x
    x = 921,253,957.65/44,861.04
  6. Step 6: Final answer
    x = 20,535.72

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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.