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Finding the Fourth Proportional to 61,305.33, 91,958.30 and 18,611.13

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Solution

The fourth proportional to 61,305.33, 91,958.30 and 18,611.13 is: 27,916.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,305.33 : 91,958.30 = 18,611.13 : x
  2. Step 2: Convert to fraction form
    61,305.33/91,958.30 = 18,611.13/x
  3. Step 3: Cross multiply
    61,305.33x = 91,958.30 × 18,611.13
  4. Step 4: Simplify right side
    61,305.33x = 1,711,447,782.82
  5. Step 5: Solve for x
    x = 1,711,447,782.82/61,305.33
  6. Step 6: Final answer
    x = 27,916.79

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Similar ratio
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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.