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Finding the Fourth Proportional to 61,773.12, 85,246.56 and 33,478.80

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Solution

The fourth proportional to 61,773.12, 85,246.56 and 33,478.80 is: 46,200.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,773.12 : 85,246.56 = 33,478.80 : x
  2. Step 2: Convert to fraction form
    61,773.12/85,246.56 = 33,478.80/x
  3. Step 3: Cross multiply
    61,773.12x = 85,246.56 × 33,478.80
  4. Step 4: Simplify right side
    61,773.12x = 2,853,952,532.93
  5. Step 5: Solve for x
    x = 2,853,952,532.93/61,773.12
  6. Step 6: Final answer
    x = 46,200.56

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1.5x scale

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.