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Finding the Fourth Proportional to 41,722.80, 62,584.20 and 14,020.80

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Solution

The fourth proportional to 41,722.80, 62,584.20 and 14,020.80 is: 21,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,722.80 : 62,584.20 = 14,020.80 : x
  2. Step 2: Convert to fraction form
    41,722.80/62,584.20 = 14,020.80/x
  3. Step 3: Cross multiply
    41,722.80x = 62,584.20 × 14,020.80
  4. Step 4: Simplify right side
    41,722.80x = 877,480,551.36
  5. Step 5: Solve for x
    x = 877,480,551.36/41,722.80
  6. Step 6: Final answer
    x = 21,031.20

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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.