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Finding the Fourth Proportional to 24,422.80, 36,634.20 and 21,215.20

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Solution

The fourth proportional to 24,422.80, 36,634.20 and 21,215.20 is: 31,822.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,422.80 : 36,634.20 = 21,215.20 : x
  2. Step 2: Convert to fraction form
    24,422.80/36,634.20 = 21,215.20/x
  3. Step 3: Cross multiply
    24,422.80x = 36,634.20 × 21,215.20
  4. Step 4: Simplify right side
    24,422.80x = 777,201,879.84
  5. Step 5: Solve for x
    x = 777,201,879.84/24,422.80
  6. Step 6: Final answer
    x = 31,822.80

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1.5x scale

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.