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Finding the Fourth Proportional to 60,642.80, 83,693.22 and 33,789.68

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Solution

The fourth proportional to 60,642.80, 83,693.22 and 33,789.68 is: 46,633.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,642.80 : 83,693.22 = 33,789.68 : x
  2. Step 2: Convert to fraction form
    60,642.80/83,693.22 = 33,789.68/x
  3. Step 3: Cross multiply
    60,642.80x = 83,693.22 × 33,789.68
  4. Step 4: Simplify right side
    60,642.80x = 2,827,967,121.97
  5. Step 5: Solve for x
    x = 2,827,967,121.97/60,642.80
  6. Step 6: Final answer
    x = 46,633.19

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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.