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Finding the Fourth Proportional to 52,759.68, 79,147.76 and 17,691.14

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Solution

The fourth proportional to 52,759.68, 79,147.76 and 17,691.14 is: 26,539.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,759.68 : 79,147.76 = 17,691.14 : x
  2. Step 2: Convert to fraction form
    52,759.68/79,147.76 = 17,691.14/x
  3. Step 3: Cross multiply
    52,759.68x = 79,147.76 × 17,691.14
  4. Step 4: Simplify right side
    52,759.68x = 1,400,213,618.65
  5. Step 5: Solve for x
    x = 1,400,213,618.65/52,759.68
  6. Step 6: Final answer
    x = 26,539.46

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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.