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Finding the Fourth Proportional to 70,074.96, 105,049.92 and 25,691.34

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Solution

The fourth proportional to 70,074.96, 105,049.92 and 25,691.34 is: 38,514.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,074.96 : 105,049.92 = 25,691.34 : x
  2. Step 2: Convert to fraction form
    70,074.96/105,049.92 = 25,691.34/x
  3. Step 3: Cross multiply
    70,074.96x = 105,049.92 × 25,691.34
  4. Step 4: Simplify right side
    70,074.96x = 2,698,873,211.69
  5. Step 5: Solve for x
    x = 2,698,873,211.69/70,074.96
  6. Step 6: Final answer
    x = 38,514.09

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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.