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Finding the Fourth Proportional to 68,993.32, 95,213.46 and 38,779.24

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Solution

The fourth proportional to 68,993.32, 95,213.46 and 38,779.24 is: 53,516.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,993.32 : 95,213.46 = 38,779.24 : x
  2. Step 2: Convert to fraction form
    68,993.32/95,213.46 = 38,779.24/x
  3. Step 3: Cross multiply
    68,993.32x = 95,213.46 × 38,779.24
  4. Step 4: Simplify right side
    68,993.32x = 3,692,305,616.57
  5. Step 5: Solve for x
    x = 3,692,305,616.57/68,993.32
  6. Step 6: Final answer
    x = 53,516.86

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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.