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Finding the Fourth Proportional to 47,452.49, 65,494.45 and 39,486.95

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Solution

The fourth proportional to 47,452.49, 65,494.45 and 39,486.95 is: 54,500.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,452.49 : 65,494.45 = 39,486.95 : x
  2. Step 2: Convert to fraction form
    47,452.49/65,494.45 = 39,486.95/x
  3. Step 3: Cross multiply
    47,452.49x = 65,494.45 × 39,486.95
  4. Step 4: Simplify right side
    47,452.49x = 2,586,176,334.88
  5. Step 5: Solve for x
    x = 2,586,176,334.88/47,452.49
  6. Step 6: Final answer
    x = 54,500.33

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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.