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Finding the Fourth Proportional to 70,750.82, 97,634.06 and 38,919.70

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Solution

The fourth proportional to 70,750.82, 97,634.06 and 38,919.70 is: 53,708.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,750.82 : 97,634.06 = 38,919.70 : x
  2. Step 2: Convert to fraction form
    70,750.82/97,634.06 = 38,919.70/x
  3. Step 3: Cross multiply
    70,750.82x = 97,634.06 × 38,919.70
  4. Step 4: Simplify right side
    70,750.82x = 3,799,888,324.98
  5. Step 5: Solve for x
    x = 3,799,888,324.98/70,750.82
  6. Step 6: Final answer
    x = 53,708.05

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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.