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Finding the Fourth Proportional to 70,245.41, 96,938.61 and 38,414.30

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Solution

The fourth proportional to 70,245.41, 96,938.61 and 38,414.30 is: 53,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,245.41 : 96,938.61 = 38,414.30 : x
  2. Step 2: Convert to fraction form
    70,245.41/96,938.61 = 38,414.30/x
  3. Step 3: Cross multiply
    70,245.41x = 96,938.61 × 38,414.30
  4. Step 4: Simplify right side
    70,245.41x = 3,723,828,169.36
  5. Step 5: Solve for x
    x = 3,723,828,169.36/70,245.41
  6. Step 6: Final answer
    x = 53,011.70

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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.