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Finding the Fourth Proportional to 61,216.85, 91,853.52 and 27,947.12

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Solution

The fourth proportional to 61,216.85, 91,853.52 and 27,947.12 is: 41,933.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,216.85 : 91,853.52 = 27,947.12 : x
  2. Step 2: Convert to fraction form
    61,216.85/91,853.52 = 27,947.12/x
  3. Step 3: Cross multiply
    61,216.85x = 91,853.52 × 27,947.12
  4. Step 4: Simplify right side
    61,216.85x = 2,567,040,886.59
  5. Step 5: Solve for x
    x = 2,567,040,886.59/61,216.85
  6. Step 6: Final answer
    x = 41,933.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.