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Finding the Fourth Proportional to 68,891.36, 95,063.51 and 38,669.76

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Solution

The fourth proportional to 68,891.36, 95,063.51 and 38,669.76 is: 53,360.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,891.36 : 95,063.51 = 38,669.76 : x
  2. Step 2: Convert to fraction form
    68,891.36/95,063.51 = 38,669.76/x
  3. Step 3: Cross multiply
    68,891.36x = 95,063.51 × 38,669.76
  4. Step 4: Simplify right side
    68,891.36x = 3,676,083,116.46
  5. Step 5: Solve for x
    x = 3,676,083,116.46/68,891.36
  6. Step 6: Final answer
    x = 53,360.58

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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.