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Finding the Fourth Proportional to 70,793.56, 97,697.46 and 38,963.80

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Solution

The fourth proportional to 70,793.56, 97,697.46 and 38,963.80 is: 53,771.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,793.56 : 97,697.46 = 38,963.80 : x
  2. Step 2: Convert to fraction form
    70,793.56/97,697.46 = 38,963.80/x
  3. Step 3: Cross multiply
    70,793.56x = 97,697.46 × 38,963.80
  4. Step 4: Simplify right side
    70,793.56x = 3,806,664,291.95
  5. Step 5: Solve for x
    x = 3,806,664,291.95/70,793.56
  6. Step 6: Final answer
    x = 53,771.34

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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.