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Finding the Fourth Proportional to 61,918.65, 85,447.71 and 33,624.33

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Solution

The fourth proportional to 61,918.65, 85,447.71 and 33,624.33 is: 46,401.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,918.65 : 85,447.71 = 33,624.33 : x
  2. Step 2: Convert to fraction form
    61,918.65/85,447.71 = 33,624.33/x
  3. Step 3: Cross multiply
    61,918.65x = 85,447.71 × 33,624.33
  4. Step 4: Simplify right side
    61,918.65x = 2,873,121,998.78
  5. Step 5: Solve for x
    x = 2,873,121,998.78/61,918.65
  6. Step 6: Final answer
    x = 46,401.56

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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.