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Finding the Fourth Proportional to 52,965.97, 79,375.12 and 39,802.95

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Solution

The fourth proportional to 52,965.97, 79,375.12 and 39,802.95 is: 59,648.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,965.97 : 79,375.12 = 39,802.95 : x
  2. Step 2: Convert to fraction form
    52,965.97/79,375.12 = 39,802.95/x
  3. Step 3: Cross multiply
    52,965.97x = 79,375.12 × 39,802.95
  4. Step 4: Simplify right side
    52,965.97x = 3,159,363,833.10
  5. Step 5: Solve for x
    x = 3,159,363,833.10/52,965.97
  6. Step 6: Final answer
    x = 59,648.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.