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Finding the Fourth Proportional to 28,241.64, 38,974.50 and 17,061.48

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Solution

The fourth proportional to 28,241.64, 38,974.50 and 17,061.48 is: 23,545.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,241.64 : 38,974.50 = 17,061.48 : x
  2. Step 2: Convert to fraction form
    28,241.64/38,974.50 = 17,061.48/x
  3. Step 3: Cross multiply
    28,241.64x = 38,974.50 × 17,061.48
  4. Step 4: Simplify right side
    28,241.64x = 664,962,652.26
  5. Step 5: Solve for x
    x = 664,962,652.26/28,241.64
  6. Step 6: Final answer
    x = 23,545.47

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.