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Finding the Fourth Proportional to 52,935.91, 79,387.13 and 17,391.39

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Solution

The fourth proportional to 52,935.91, 79,387.13 and 17,391.39 is: 26,081.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,935.91 : 79,387.13 = 17,391.39 : x
  2. Step 2: Convert to fraction form
    52,935.91/79,387.13 = 17,391.39/x
  3. Step 3: Cross multiply
    52,935.91x = 79,387.13 × 17,391.39
  4. Step 4: Simplify right side
    52,935.91x = 1,380,652,538.81
  5. Step 5: Solve for x
    x = 1,380,652,538.81/52,935.91
  6. Step 6: Final answer
    x = 26,081.59

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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.