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Finding the Fourth Proportional to 71,595.04, 98,799.43 and 39,763.66

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Solution

The fourth proportional to 71,595.04, 98,799.43 and 39,763.66 is: 54,872.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,595.04 : 98,799.43 = 39,763.66 : x
  2. Step 2: Convert to fraction form
    71,595.04/98,799.43 = 39,763.66/x
  3. Step 3: Cross multiply
    71,595.04x = 98,799.43 × 39,763.66
  4. Step 4: Simplify right side
    71,595.04x = 3,928,626,249.90
  5. Step 5: Solve for x
    x = 3,928,626,249.90/71,595.04
  6. Step 6: Final answer
    x = 54,872.89

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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.