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Finding the Fourth Proportional to 69,892.43, 96,452.48 and 39,675.47

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Solution

The fourth proportional to 69,892.43, 96,452.48 and 39,675.47 is: 54,752.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,892.43 : 96,452.48 = 39,675.47 : x
  2. Step 2: Convert to fraction form
    69,892.43/96,452.48 = 39,675.47/x
  3. Step 3: Cross multiply
    69,892.43x = 96,452.48 × 39,675.47
  4. Step 4: Simplify right side
    69,892.43x = 3,826,797,278.29
  5. Step 5: Solve for x
    x = 3,826,797,278.29/69,892.43
  6. Step 6: Final answer
    x = 54,752.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.