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Finding the Fourth Proportional to 58,731.40, 88,067.84 and 18,745.14

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Solution

The fourth proportional to 58,731.40, 88,067.84 and 18,745.14 is: 28,108.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,731.40 : 88,067.84 = 18,745.14 : x
  2. Step 2: Convert to fraction form
    58,731.40/88,067.84 = 18,745.14/x
  3. Step 3: Cross multiply
    58,731.40x = 88,067.84 × 18,745.14
  4. Step 4: Simplify right side
    58,731.40x = 1,650,843,990.30
  5. Step 5: Solve for x
    x = 1,650,843,990.30/58,731.40
  6. Step 6: Final answer
    x = 28,108.37

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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.