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Finding the Fourth Proportional to 70,132.98, 96,783.86 and 38,301.88

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Solution

The fourth proportional to 70,132.98, 96,783.86 and 38,301.88 is: 52,856.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,132.98 : 96,783.86 = 38,301.88 : x
  2. Step 2: Convert to fraction form
    70,132.98/96,783.86 = 38,301.88/x
  3. Step 3: Cross multiply
    70,132.98x = 96,783.86 × 38,301.88
  4. Step 4: Simplify right side
    70,132.98x = 3,707,003,791.66
  5. Step 5: Solve for x
    x = 3,707,003,791.66/70,132.98
  6. Step 6: Final answer
    x = 52,856.78

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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.