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Finding the Fourth Proportional to 57,498.86, 86,241.48 and 15,382.20

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Solution

The fourth proportional to 57,498.86, 86,241.48 and 15,382.20 is: 23,071.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,498.86 : 86,241.48 = 15,382.20 : x
  2. Step 2: Convert to fraction form
    57,498.86/86,241.48 = 15,382.20/x
  3. Step 3: Cross multiply
    57,498.86x = 86,241.48 × 15,382.20
  4. Step 4: Simplify right side
    57,498.86x = 1,326,583,693.66
  5. Step 5: Solve for x
    x = 1,326,583,693.66/57,498.86
  6. Step 6: Final answer
    x = 23,071.48

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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.