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Finding the Fourth Proportional to 70,795.60, 97,694.38 and 38,963.68

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Solution

The fourth proportional to 70,795.60, 97,694.38 and 38,963.68 is: 53,767.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,795.60 : 97,694.38 = 38,963.68 : x
  2. Step 2: Convert to fraction form
    70,795.60/97,694.38 = 38,963.68/x
  3. Step 3: Cross multiply
    70,795.60x = 97,694.38 × 38,963.68
  4. Step 4: Simplify right side
    70,795.60x = 3,806,532,560.12
  5. Step 5: Solve for x
    x = 3,806,532,560.12/70,795.60
  6. Step 6: Final answer
    x = 53,767.93

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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.