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Finding the Fourth Proportional to 48,508.46, 72,763.01 and 16,918.40

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Solution

The fourth proportional to 48,508.46, 72,763.01 and 16,918.40 is: 25,377.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,508.46 : 72,763.01 = 16,918.40 : x
  2. Step 2: Convert to fraction form
    48,508.46/72,763.01 = 16,918.40/x
  3. Step 3: Cross multiply
    48,508.46x = 72,763.01 × 16,918.40
  4. Step 4: Simplify right side
    48,508.46x = 1,231,033,715.66
  5. Step 5: Solve for x
    x = 1,231,033,715.66/48,508.46
  6. Step 6: Final answer
    x = 25,377.71

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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.