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Finding the Fourth Proportional to 62,643.27, 93,978.72 and 18,273.49

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Solution

The fourth proportional to 62,643.27, 93,978.72 and 18,273.49 is: 27,414.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,643.27 : 93,978.72 = 18,273.49 : x
  2. Step 2: Convert to fraction form
    62,643.27/93,978.72 = 18,273.49/x
  3. Step 3: Cross multiply
    62,643.27x = 93,978.72 × 18,273.49
  4. Step 4: Simplify right side
    62,643.27x = 1,717,319,200.13
  5. Step 5: Solve for x
    x = 1,717,319,200.13/62,643.27
  6. Step 6: Final answer
    x = 27,414.27

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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.