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Finding the Fourth Proportional to 61,195.74, 84,438.90 and 41,081.82

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Solution

The fourth proportional to 61,195.74, 84,438.90 and 41,081.82 is: 56,685.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,195.74 : 84,438.90 = 41,081.82 : x
  2. Step 2: Convert to fraction form
    61,195.74/84,438.90 = 41,081.82/x
  3. Step 3: Cross multiply
    61,195.74x = 84,438.90 × 41,081.82
  4. Step 4: Simplify right side
    61,195.74x = 3,468,903,690.80
  5. Step 5: Solve for x
    x = 3,468,903,690.80/61,195.74
  6. Step 6: Final answer
    x = 56,685.38

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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.