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Finding the Third Proportional to 18,475.25 and 28,666

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Solution

The third proportional to 18,475.25 and 28,666 is: 44,477.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,475.25 : 28,666 = 28,666 : x
  2. Step 2: Convert to fraction form
    18,475.25/28,666 = 28,666/x
  3. Step 3: Cross multiply
    18,475.25x = 28,666 × 28,666
  4. Step 4: Simplify right side
    18,475.25x = 821,739,556
  5. Step 5: Solve for x
    x = 821,739,556/18,475.25
  6. Step 6: Final answer
    x = 44,477.86

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.