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Finding the Fourth Proportional to 70,734.96, 97,610.63 and 38,897.73

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Solution

The fourth proportional to 70,734.96, 97,610.63 and 38,897.73 is: 53,676.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,734.96 : 97,610.63 = 38,897.73 : x
  2. Step 2: Convert to fraction form
    70,734.96/97,610.63 = 38,897.73/x
  3. Step 3: Cross multiply
    70,734.96x = 97,610.63 × 38,897.73
  4. Step 4: Simplify right side
    70,734.96x = 3,796,831,736.38
  5. Step 5: Solve for x
    x = 3,796,831,736.38/70,734.96
  6. Step 6: Final answer
    x = 53,676.88

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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.