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Finding the Fourth Proportional to 22,543.80, 33,815.70 and 10,231.80

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Solution

The fourth proportional to 22,543.80, 33,815.70 and 10,231.80 is: 15,347.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,543.80 : 33,815.70 = 10,231.80 : x
  2. Step 2: Convert to fraction form
    22,543.80/33,815.70 = 10,231.80/x
  3. Step 3: Cross multiply
    22,543.80x = 33,815.70 × 10,231.80
  4. Step 4: Simplify right side
    22,543.80x = 345,995,479.26
  5. Step 5: Solve for x
    x = 345,995,479.26/22,543.80
  6. Step 6: Final answer
    x = 15,347.70

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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.