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Finding the Fourth Proportional to 70,759.66, 97,648.82 and 38,494.58

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Solution

The fourth proportional to 70,759.66, 97,648.82 and 38,494.58 is: 53,122.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,759.66 : 97,648.82 = 38,494.58 : x
  2. Step 2: Convert to fraction form
    70,759.66/97,648.82 = 38,494.58/x
  3. Step 3: Cross multiply
    70,759.66x = 97,648.82 × 38,494.58
  4. Step 4: Simplify right side
    70,759.66x = 3,758,950,313.40
  5. Step 5: Solve for x
    x = 3,758,950,313.40/70,759.66
  6. Step 6: Final answer
    x = 53,122.79

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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.