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Finding the Fourth Proportional to 70,704.99, 97,572.65 and 38,873.79

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Solution

The fourth proportional to 70,704.99, 97,572.65 and 38,873.79 is: 53,645.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,704.99 : 97,572.65 = 38,873.79 : x
  2. Step 2: Convert to fraction form
    70,704.99/97,572.65 = 38,873.79/x
  3. Step 3: Cross multiply
    70,704.99x = 97,572.65 × 38,873.79
  4. Step 4: Simplify right side
    70,704.99x = 3,793,018,511.47
  5. Step 5: Solve for x
    x = 3,793,018,511.47/70,704.99
  6. Step 6: Final answer
    x = 53,645.70

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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.