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Finding the Third Proportional to 28,530 and 43,908

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Solution

The third proportional to 28,530 and 43,908 is: 67,574.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,530 : 43,908 = 43,908 : x
  2. Step 2: Convert to fraction form
    28,530/43,908 = 43,908/x
  3. Step 3: Cross multiply
    28,530x = 43,908 × 43,908
  4. Step 4: Simplify right side
    28,530x = 1,927,912,464
  5. Step 5: Solve for x
    x = 1,927,912,464/28,530
  6. Step 6: Final answer
    x = 67,574.92

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.