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Finding the Third Proportional to 25,210 and 38,100

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Solution

The third proportional to 25,210 and 38,100 is: 57,580.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,210 : 38,100 = 38,100 : x
  2. Step 2: Convert to fraction form
    25,210/38,100 = 38,100/x
  3. Step 3: Cross multiply
    25,210x = 38,100 × 38,100
  4. Step 4: Simplify right side
    25,210x = 1,451,610,000
  5. Step 5: Solve for x
    x = 1,451,610,000/25,210
  6. Step 6: Final answer
    x = 57,580.72

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.