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Finding the Third Proportional to 10,921.25 and 16,365

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Solution

The third proportional to 10,921.25 and 16,365 is: 24,522.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921.25 : 16,365 = 16,365 : x
  2. Step 2: Convert to fraction form
    10,921.25/16,365 = 16,365/x
  3. Step 3: Cross multiply
    10,921.25x = 16,365 × 16,365
  4. Step 4: Simplify right side
    10,921.25x = 267,813,225
  5. Step 5: Solve for x
    x = 267,813,225/10,921.25
  6. Step 6: Final answer
    x = 24,522.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.