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Finding the Fourth Proportional to 70,894.68, 97,836.46 and 39,063.56

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Solution

The fourth proportional to 70,894.68, 97,836.46 and 39,063.56 is: 53,908.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,894.68 : 97,836.46 = 39,063.56 : x
  2. Step 2: Convert to fraction form
    70,894.68/97,836.46 = 39,063.56/x
  3. Step 3: Cross multiply
    70,894.68x = 97,836.46 × 39,063.56
  4. Step 4: Simplify right side
    70,894.68x = 3,821,840,425.40
  5. Step 5: Solve for x
    x = 3,821,840,425.40/70,894.68
  6. Step 6: Final answer
    x = 53,908.71

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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.