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Finding the Fourth Proportional to 61,991.82, 85,545.90 and 35,132.76

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Solution

The fourth proportional to 61,991.82, 85,545.90 and 35,132.76 is: 48,481.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,991.82 : 85,545.90 = 35,132.76 : x
  2. Step 2: Convert to fraction form
    61,991.82/85,545.90 = 35,132.76/x
  3. Step 3: Cross multiply
    61,991.82x = 85,545.90 × 35,132.76
  4. Step 4: Simplify right side
    61,991.82x = 3,005,463,573.68
  5. Step 5: Solve for x
    x = 3,005,463,573.68/61,991.82
  6. Step 6: Final answer
    x = 48,481.62

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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.