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Finding the Fourth Proportional to 70,169.46, 96,810.02 and 39,947.56

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Solution

The fourth proportional to 70,169.46, 96,810.02 and 39,947.56 is: 55,114.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,169.46 : 96,810.02 = 39,947.56 : x
  2. Step 2: Convert to fraction form
    70,169.46/96,810.02 = 39,947.56/x
  3. Step 3: Cross multiply
    70,169.46x = 96,810.02 × 39,947.56
  4. Step 4: Simplify right side
    70,169.46x = 3,867,324,082.55
  5. Step 5: Solve for x
    x = 3,867,324,082.55/70,169.46
  6. Step 6: Final answer
    x = 55,114.06

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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.