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Finding the Fourth Proportional to 56,687.63, 85,028.40 and 17,241.66

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Solution

The fourth proportional to 56,687.63, 85,028.40 and 17,241.66 is: 25,861.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,687.63 : 85,028.40 = 17,241.66 : x
  2. Step 2: Convert to fraction form
    56,687.63/85,028.40 = 17,241.66/x
  3. Step 3: Cross multiply
    56,687.63x = 85,028.40 × 17,241.66
  4. Step 4: Simplify right side
    56,687.63x = 1,466,030,763.14
  5. Step 5: Solve for x
    x = 1,466,030,763.14/56,687.63
  6. Step 6: Final answer
    x = 25,861.57

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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.