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Finding the Fourth Proportional to 70,441.70, 97,208.01 and 38,609.91

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Solution

The fourth proportional to 70,441.70, 97,208.01 and 38,609.91 is: 53,280.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,441.70 : 97,208.01 = 38,609.91 : x
  2. Step 2: Convert to fraction form
    70,441.70/97,208.01 = 38,609.91/x
  3. Step 3: Cross multiply
    70,441.70x = 97,208.01 × 38,609.91
  4. Step 4: Simplify right side
    70,441.70x = 3,753,192,517.38
  5. Step 5: Solve for x
    x = 3,753,192,517.38/70,441.70
  6. Step 6: Final answer
    x = 53,280.84

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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.