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Finding the Fourth Proportional to 24,572.80, 36,859.20 and 21,851.20

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Solution

The fourth proportional to 24,572.80, 36,859.20 and 21,851.20 is: 32,776.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,572.80 : 36,859.20 = 21,851.20 : x
  2. Step 2: Convert to fraction form
    24,572.80/36,859.20 = 21,851.20/x
  3. Step 3: Cross multiply
    24,572.80x = 36,859.20 × 21,851.20
  4. Step 4: Simplify right side
    24,572.80x = 805,417,751.04
  5. Step 5: Solve for x
    x = 805,417,751.04/24,572.80
  6. Step 6: Final answer
    x = 32,776.80

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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.