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Finding the Fourth Proportional to 70,462.92, 97,244.94 and 38,638.02

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Solution

The fourth proportional to 70,462.92, 97,244.94 and 38,638.02 is: 53,323.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,462.92 : 97,244.94 = 38,638.02 : x
  2. Step 2: Convert to fraction form
    70,462.92/97,244.94 = 38,638.02/x
  3. Step 3: Cross multiply
    70,462.92x = 97,244.94 × 38,638.02
  4. Step 4: Simplify right side
    70,462.92x = 3,757,351,936.62
  5. Step 5: Solve for x
    x = 3,757,351,936.62/70,462.92
  6. Step 6: Final answer
    x = 53,323.82

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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.