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Finding the Fourth Proportional to 57,485.85, 86,241.75 and 17,508.41

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Solution

The fourth proportional to 57,485.85, 86,241.75 and 17,508.41 is: 26,266.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,485.85 : 86,241.75 = 17,508.41 : x
  2. Step 2: Convert to fraction form
    57,485.85/86,241.75 = 17,508.41/x
  3. Step 3: Cross multiply
    57,485.85x = 86,241.75 × 17,508.41
  4. Step 4: Simplify right side
    57,485.85x = 1,509,955,744.66
  5. Step 5: Solve for x
    x = 1,509,955,744.66/57,485.85
  6. Step 6: Final answer
    x = 26,266.57

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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.