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Finding the Fourth Proportional to 61,883.52, 85,399.36 and 33,589.20

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Solution

The fourth proportional to 61,883.52, 85,399.36 and 33,589.20 is: 46,353.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,883.52 : 85,399.36 = 33,589.20 : x
  2. Step 2: Convert to fraction form
    61,883.52/85,399.36 = 33,589.20/x
  3. Step 3: Cross multiply
    61,883.52x = 85,399.36 × 33,589.20
  4. Step 4: Simplify right side
    61,883.52x = 2,868,496,182.91
  5. Step 5: Solve for x
    x = 2,868,496,182.91/61,883.52
  6. Step 6: Final answer
    x = 46,353.15

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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.