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Finding the Fourth Proportional to 70,351.66, 97,084.42 and 38,519.88

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Solution

The fourth proportional to 70,351.66, 97,084.42 and 38,519.88 is: 53,156.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,351.66 : 97,084.42 = 38,519.88 : x
  2. Step 2: Convert to fraction form
    70,351.66/97,084.42 = 38,519.88/x
  3. Step 3: Cross multiply
    70,351.66x = 97,084.42 × 38,519.88
  4. Step 4: Simplify right side
    70,351.66x = 3,739,680,208.27
  5. Step 5: Solve for x
    x = 3,739,680,208.27/70,351.66
  6. Step 6: Final answer
    x = 53,156.96

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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.