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Finding the Fourth Proportional to 66,911.56, 100,367.51 and 22,569.42

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Solution

The fourth proportional to 66,911.56, 100,367.51 and 22,569.42 is: 33,854.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,911.56 : 100,367.51 = 22,569.42 : x
  2. Step 2: Convert to fraction form
    66,911.56/100,367.51 = 22,569.42/x
  3. Step 3: Cross multiply
    66,911.56x = 100,367.51 × 22,569.42
  4. Step 4: Simplify right side
    66,911.56x = 2,265,236,738.46
  5. Step 5: Solve for x
    x = 2,265,236,738.46/66,911.56
  6. Step 6: Final answer
    x = 33,854.19

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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.