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Finding the Third Proportional to 12,220 and 26,288

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Solution

The third proportional to 12,220 and 26,288 is: 56,551.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,220 : 26,288 = 26,288 : x
  2. Step 2: Convert to fraction form
    12,220/26,288 = 26,288/x
  3. Step 3: Cross multiply
    12,220x = 26,288 × 26,288
  4. Step 4: Simplify right side
    12,220x = 691,058,944
  5. Step 5: Solve for x
    x = 691,058,944/12,220
  6. Step 6: Final answer
    x = 56,551.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.