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Finding the Fourth Proportional to 27,220.62, 40,792.62 and 21,649.24

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Solution

The fourth proportional to 27,220.62, 40,792.62 and 21,649.24 is: 32,443.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,220.62 : 40,792.62 = 21,649.24 : x
  2. Step 2: Convert to fraction form
    27,220.62/40,792.62 = 21,649.24/x
  3. Step 3: Cross multiply
    27,220.62x = 40,792.62 × 21,649.24
  4. Step 4: Simplify right side
    27,220.62x = 883,129,220.61
  5. Step 5: Solve for x
    x = 883,129,220.61/27,220.62
  6. Step 6: Final answer
    x = 32,443.39

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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.