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Finding the Fourth Proportional to 41,690.65, 62,480.68 and 21,983.16

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Solution

The fourth proportional to 41,690.65, 62,480.68 and 21,983.16 is: 32,945.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,690.65 : 62,480.68 = 21,983.16 : x
  2. Step 2: Convert to fraction form
    41,690.65/62,480.68 = 21,983.16/x
  3. Step 3: Cross multiply
    41,690.65x = 62,480.68 × 21,983.16
  4. Step 4: Simplify right side
    41,690.65x = 1,373,522,785.35
  5. Step 5: Solve for x
    x = 1,373,522,785.35/41,690.65
  6. Step 6: Final answer
    x = 32,945.58

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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.