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Finding the Third Proportional to 2,220 and 3,564

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Solution

The third proportional to 2,220 and 3,564 is: 5,721.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220 : 3,564 = 3,564 : x
  2. Step 2: Convert to fraction form
    2,220/3,564 = 3,564/x
  3. Step 3: Cross multiply
    2,220x = 3,564 × 3,564
  4. Step 4: Simplify right side
    2,220x = 12,702,096
  5. Step 5: Solve for x
    x = 12,702,096/2,220
  6. Step 6: Final answer
    x = 5,721.66

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.