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Finding the Fourth Proportional to 61,866.36, 85,375.80 and 33,572.06

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Solution

The fourth proportional to 61,866.36, 85,375.80 and 33,572.06 is: 46,329.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,866.36 : 85,375.80 = 33,572.06 : x
  2. Step 2: Convert to fraction form
    61,866.36/85,375.80 = 33,572.06/x
  3. Step 3: Cross multiply
    61,866.36x = 85,375.80 × 33,572.06
  4. Step 4: Simplify right side
    61,866.36x = 2,866,241,480.15
  5. Step 5: Solve for x
    x = 2,866,241,480.15/61,866.36
  6. Step 6: Final answer
    x = 46,329.56

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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.