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Finding the Fourth Proportional to 62,656.69, 93,989.13 and 18,279.73

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Solution

The fourth proportional to 62,656.69, 93,989.13 and 18,279.73 is: 27,420.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,656.69 : 93,989.13 = 18,279.73 : x
  2. Step 2: Convert to fraction form
    62,656.69/93,989.13 = 18,279.73/x
  3. Step 3: Cross multiply
    62,656.69x = 93,989.13 × 18,279.73
  4. Step 4: Simplify right side
    62,656.69x = 1,718,095,919.33
  5. Step 5: Solve for x
    x = 1,718,095,919.33/62,656.69
  6. Step 6: Final answer
    x = 27,420.79

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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.