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Finding the Fourth Proportional to 61,884.52, 85,400.72 and 33,590.22

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Solution

The fourth proportional to 61,884.52, 85,400.72 and 33,590.22 is: 46,354.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,884.52 : 85,400.72 = 33,590.22 : x
  2. Step 2: Convert to fraction form
    61,884.52/85,400.72 = 33,590.22/x
  3. Step 3: Cross multiply
    61,884.52x = 85,400.72 × 33,590.22
  4. Step 4: Simplify right side
    61,884.52x = 2,868,628,972.96
  5. Step 5: Solve for x
    x = 2,868,628,972.96/61,884.52
  6. Step 6: Final answer
    x = 46,354.55

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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.