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Finding the Fourth Proportional to 70,994.67, 97,972.92 and 38,729.98

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Solution

The fourth proportional to 70,994.67, 97,972.92 and 38,729.98 is: 53,447.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,994.67 : 97,972.92 = 38,729.98 : x
  2. Step 2: Convert to fraction form
    70,994.67/97,972.92 = 38,729.98/x
  3. Step 3: Cross multiply
    70,994.67x = 97,972.92 × 38,729.98
  4. Step 4: Simplify right side
    70,994.67x = 3,794,488,548.63
  5. Step 5: Solve for x
    x = 3,794,488,548.63/70,994.67
  6. Step 6: Final answer
    x = 53,447.52

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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.