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Finding the Fourth Proportional to 70,224.59, 96,910.88 and 38,393.42

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Solution

The fourth proportional to 70,224.59, 96,910.88 and 38,393.42 is: 52,983.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,224.59 : 96,910.88 = 38,393.42 : x
  2. Step 2: Convert to fraction form
    70,224.59/96,910.88 = 38,393.42/x
  3. Step 3: Cross multiply
    70,224.59x = 96,910.88 × 38,393.42
  4. Step 4: Simplify right side
    70,224.59x = 3,720,739,441.89
  5. Step 5: Solve for x
    x = 3,720,739,441.89/70,224.59
  6. Step 6: Final answer
    x = 52,983.43

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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.