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Finding the Fourth Proportional to 41,695.70, 62,543.55 and 20,911.70

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Solution

The fourth proportional to 41,695.70, 62,543.55 and 20,911.70 is: 31,367.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,695.70 : 62,543.55 = 20,911.70 : x
  2. Step 2: Convert to fraction form
    41,695.70/62,543.55 = 20,911.70/x
  3. Step 3: Cross multiply
    41,695.70x = 62,543.55 × 20,911.70
  4. Step 4: Simplify right side
    41,695.70x = 1,307,891,954.54
  5. Step 5: Solve for x
    x = 1,307,891,954.54/41,695.70
  6. Step 6: Final answer
    x = 31,367.55

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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.