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Finding the Fourth Proportional to 70,615.81, 97,449.48 and 38,350.20

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Solution

The fourth proportional to 70,615.81, 97,449.48 and 38,350.20 is: 52,923.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,615.81 : 97,449.48 = 38,350.20 : x
  2. Step 2: Convert to fraction form
    70,615.81/97,449.48 = 38,350.20/x
  3. Step 3: Cross multiply
    70,615.81x = 97,449.48 × 38,350.20
  4. Step 4: Simplify right side
    70,615.81x = 3,737,206,660.46
  5. Step 5: Solve for x
    x = 3,737,206,660.46/70,615.81
  6. Step 6: Final answer
    x = 52,923.09

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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.