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Finding the Fourth Proportional to 61,860.78, 85,367.12 and 33,566.27

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Solution

The fourth proportional to 61,860.78, 85,367.12 and 33,566.27 is: 46,321.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,860.78 : 85,367.12 = 33,566.27 : x
  2. Step 2: Convert to fraction form
    61,860.78/85,367.12 = 33,566.27/x
  3. Step 3: Cross multiply
    61,860.78x = 85,367.12 × 33,566.27
  4. Step 4: Simplify right side
    61,860.78x = 2,865,455,204.38
  5. Step 5: Solve for x
    x = 2,865,455,204.38/61,860.78
  6. Step 6: Final answer
    x = 46,321.03

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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.