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Finding the Fourth Proportional to 24,109.20, 36,163.80 and 21,193.20

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Solution

The fourth proportional to 24,109.20, 36,163.80 and 21,193.20 is: 31,789.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,109.20 : 36,163.80 = 21,193.20 : x
  2. Step 2: Convert to fraction form
    24,109.20/36,163.80 = 21,193.20/x
  3. Step 3: Cross multiply
    24,109.20x = 36,163.80 × 21,193.20
  4. Step 4: Simplify right side
    24,109.20x = 766,426,646.16
  5. Step 5: Solve for x
    x = 766,426,646.16/24,109.20
  6. Step 6: Final answer
    x = 31,789.80

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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.