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Finding the Fourth Proportional to 71,342.73, 98,452.92 and 39,511.59

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Solution

The fourth proportional to 71,342.73, 98,452.92 and 39,511.59 is: 54,525.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,342.73 : 98,452.92 = 39,511.59 : x
  2. Step 2: Convert to fraction form
    71,342.73/98,452.92 = 39,511.59/x
  3. Step 3: Cross multiply
    71,342.73x = 98,452.92 × 39,511.59
  4. Step 4: Simplify right side
    71,342.73x = 3,890,031,409.34
  5. Step 5: Solve for x
    x = 3,890,031,409.34/71,342.73
  6. Step 6: Final answer
    x = 54,525.97

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1.5x scale

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.