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Finding the Fourth Proportional to 73,587.72, 110,371.20 and 23,661.47

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Solution

The fourth proportional to 73,587.72, 110,371.20 and 23,661.47 is: 35,488.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,587.72 : 110,371.20 = 23,661.47 : x
  2. Step 2: Convert to fraction form
    73,587.72/110,371.20 = 23,661.47/x
  3. Step 3: Cross multiply
    73,587.72x = 110,371.20 × 23,661.47
  4. Step 4: Simplify right side
    73,587.72x = 2,611,544,837.66
  5. Step 5: Solve for x
    x = 2,611,544,837.66/73,587.72
  6. Step 6: Final answer
    x = 35,488.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.