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Finding the Third Proportional to 9,564 and 20,640

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Solution

The third proportional to 9,564 and 20,640 is: 44,543.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,564 : 20,640 = 20,640 : x
  2. Step 2: Convert to fraction form
    9,564/20,640 = 20,640/x
  3. Step 3: Cross multiply
    9,564x = 20,640 × 20,640
  4. Step 4: Simplify right side
    9,564x = 426,009,600
  5. Step 5: Solve for x
    x = 426,009,600/9,564
  6. Step 6: Final answer
    x = 44,543.04

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.