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Finding the Fourth Proportional to 70,351.92, 105,516.24 and 25,999.44

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Solution

The fourth proportional to 70,351.92, 105,516.24 and 25,999.44 is: 38,994.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,351.92 : 105,516.24 = 25,999.44 : x
  2. Step 2: Convert to fraction form
    70,351.92/105,516.24 = 25,999.44/x
  3. Step 3: Cross multiply
    70,351.92x = 105,516.24 × 25,999.44
  4. Step 4: Simplify right side
    70,351.92x = 2,743,363,150.91
  5. Step 5: Solve for x
    x = 2,743,363,150.91/70,351.92
  6. Step 6: Final answer
    x = 38,994.86

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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.