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Finding the Fourth Proportional to 62,720.82, 86,554.71 and 34,426.44

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Solution

The fourth proportional to 62,720.82, 86,554.71 and 34,426.44 is: 47,508.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,720.82 : 86,554.71 = 34,426.44 : x
  2. Step 2: Convert to fraction form
    62,720.82/86,554.71 = 34,426.44/x
  3. Step 3: Cross multiply
    62,720.82x = 86,554.71 × 34,426.44
  4. Step 4: Simplify right side
    62,720.82x = 2,979,770,530.53
  5. Step 5: Solve for x
    x = 2,979,770,530.53/62,720.82
  6. Step 6: Final answer
    x = 47,508.48

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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.