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Finding the Third Proportional to 28,474.50 and 54,216

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Solution

The third proportional to 28,474.50 and 54,216 is: 103,228.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,474.50 : 54,216 = 54,216 : x
  2. Step 2: Convert to fraction form
    28,474.50/54,216 = 54,216/x
  3. Step 3: Cross multiply
    28,474.50x = 54,216 × 54,216
  4. Step 4: Simplify right side
    28,474.50x = 2,939,374,656
  5. Step 5: Solve for x
    x = 2,939,374,656/28,474.50
  6. Step 6: Final answer
    x = 103,228.32

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.