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Finding the Fourth Proportional to 57,376.80, 86,067.63 and 17,934.66

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Solution

The fourth proportional to 57,376.80, 86,067.63 and 17,934.66 is: 26,902.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,376.80 : 86,067.63 = 17,934.66 : x
  2. Step 2: Convert to fraction form
    57,376.80/86,067.63 = 17,934.66/x
  3. Step 3: Cross multiply
    57,376.80x = 86,067.63 × 17,934.66
  4. Step 4: Simplify right side
    57,376.80x = 1,543,593,681.06
  5. Step 5: Solve for x
    x = 1,543,593,681.06/57,376.80
  6. Step 6: Final answer
    x = 26,902.75

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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.