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Finding the Fourth Proportional to 70,198.74, 96,874.29 and 38,367.63

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Solution

The fourth proportional to 70,198.74, 96,874.29 and 38,367.63 is: 52,947.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,198.74 : 96,874.29 = 38,367.63 : x
  2. Step 2: Convert to fraction form
    70,198.74/96,874.29 = 38,367.63/x
  3. Step 3: Cross multiply
    70,198.74x = 96,874.29 × 38,367.63
  4. Step 4: Simplify right side
    70,198.74x = 3,716,836,915.23
  5. Step 5: Solve for x
    x = 3,716,836,915.23/70,198.74
  6. Step 6: Final answer
    x = 52,947.35

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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.