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Finding the Fourth Proportional to 22,005.20, 32,959.20 and 8,850.80

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Solution

The fourth proportional to 22,005.20, 32,959.20 and 8,850.80 is: 13,256.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,005.20 : 32,959.20 = 8,850.80 : x
  2. Step 2: Convert to fraction form
    22,005.20/32,959.20 = 8,850.80/x
  3. Step 3: Cross multiply
    22,005.20x = 32,959.20 × 8,850.80
  4. Step 4: Simplify right side
    22,005.20x = 291,715,287.36
  5. Step 5: Solve for x
    x = 291,715,287.36/22,005.20
  6. Step 6: Final answer
    x = 13,256.65

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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.