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Finding the Fourth Proportional to 57,899.22, 86,853.06 and 18,460.32

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Solution

The fourth proportional to 57,899.22, 86,853.06 and 18,460.32 is: 27,691.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,899.22 : 86,853.06 = 18,460.32 : x
  2. Step 2: Convert to fraction form
    57,899.22/86,853.06 = 18,460.32/x
  3. Step 3: Cross multiply
    57,899.22x = 86,853.06 × 18,460.32
  4. Step 4: Simplify right side
    57,899.22x = 1,603,335,280.58
  5. Step 5: Solve for x
    x = 1,603,335,280.58/57,899.22
  6. Step 6: Final answer
    x = 27,691.83

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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.