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Finding the Fourth Proportional to 62,843.72, 86,725.76 and 34,164.99

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Solution

The fourth proportional to 62,843.72, 86,725.76 and 34,164.99 is: 47,148.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,843.72 : 86,725.76 = 34,164.99 : x
  2. Step 2: Convert to fraction form
    62,843.72/86,725.76 = 34,164.99/x
  3. Step 3: Cross multiply
    62,843.72x = 86,725.76 × 34,164.99
  4. Step 4: Simplify right side
    62,843.72x = 2,962,984,552.32
  5. Step 5: Solve for x
    x = 2,962,984,552.32/62,843.72
  6. Step 6: Final answer
    x = 47,148.46

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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.