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Finding the Fourth Proportional to 41,939.04, 62,919.48 and 15,644

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Solution

The fourth proportional to 41,939.04, 62,919.48 and 15,644 is: 23,470.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,939.04 : 62,919.48 = 15,644 : x
  2. Step 2: Convert to fraction form
    41,939.04/62,919.48 = 15,644/x
  3. Step 3: Cross multiply
    41,939.04x = 62,919.48 × 15,644
  4. Step 4: Simplify right side
    41,939.04x = 984,312,345.12
  5. Step 5: Solve for x
    x = 984,312,345.12/41,939.04
  6. Step 6: Final answer
    x = 23,470.07

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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.