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Finding the Fourth Proportional to 61,991.73, 85,546.80 and 35,136.72

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Solution

The fourth proportional to 61,991.73, 85,546.80 and 35,136.72 is: 48,487.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,991.73 : 85,546.80 = 35,136.72 : x
  2. Step 2: Convert to fraction form
    61,991.73/85,546.80 = 35,136.72/x
  3. Step 3: Cross multiply
    61,991.73x = 85,546.80 × 35,136.72
  4. Step 4: Simplify right side
    61,991.73x = 3,005,833,958.50
  5. Step 5: Solve for x
    x = 3,005,833,958.50/61,991.73
  6. Step 6: Final answer
    x = 48,487.66

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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.