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Finding the Third Proportional to 27,586.50 and 42,793

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Solution

The third proportional to 27,586.50 and 42,793 is: 66,381.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,586.50 : 42,793 = 42,793 : x
  2. Step 2: Convert to fraction form
    27,586.50/42,793 = 42,793/x
  3. Step 3: Cross multiply
    27,586.50x = 42,793 × 42,793
  4. Step 4: Simplify right side
    27,586.50x = 1,831,240,849
  5. Step 5: Solve for x
    x = 1,831,240,849/27,586.50
  6. Step 6: Final answer
    x = 66,381.78

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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.