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Finding the Fourth Proportional to 61,866.43, 85,375.89 and 33,572.12

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Solution

The fourth proportional to 61,866.43, 85,375.89 and 33,572.12 is: 46,329.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,866.43 : 85,375.89 = 33,572.12 : x
  2. Step 2: Convert to fraction form
    61,866.43/85,375.89 = 33,572.12/x
  3. Step 3: Cross multiply
    61,866.43x = 85,375.89 × 33,572.12
  4. Step 4: Simplify right side
    61,866.43x = 2,866,249,624.19
  5. Step 5: Solve for x
    x = 2,866,249,624.19/61,866.43
  6. Step 6: Final answer
    x = 46,329.64

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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.