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Finding the Fourth Proportional to 64,959.14, 89,604.62 and 39,452.54

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Solution

The fourth proportional to 64,959.14, 89,604.62 and 39,452.54 is: 54,420.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,959.14 : 89,604.62 = 39,452.54 : x
  2. Step 2: Convert to fraction form
    64,959.14/89,604.62 = 39,452.54/x
  3. Step 3: Cross multiply
    64,959.14x = 89,604.62 × 39,452.54
  4. Step 4: Simplify right side
    64,959.14x = 3,535,129,854.73
  5. Step 5: Solve for x
    x = 3,535,129,854.73/64,959.14
  6. Step 6: Final answer
    x = 54,420.82

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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.