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Finding the Fourth Proportional to 70,000.40, 96,600.60 and 38,169.36

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Solution

The fourth proportional to 70,000.40, 96,600.60 and 38,169.36 is: 52,673.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,000.40 : 96,600.60 = 38,169.36 : x
  2. Step 2: Convert to fraction form
    70,000.40/96,600.60 = 38,169.36/x
  3. Step 3: Cross multiply
    70,000.40x = 96,600.60 × 38,169.36
  4. Step 4: Simplify right side
    70,000.40x = 3,687,183,077.62
  5. Step 5: Solve for x
    x = 3,687,183,077.62/70,000.40
  6. Step 6: Final answer
    x = 52,673.74

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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.