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Finding the Third Proportional to 7,725 and 16,365

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Solution

The third proportional to 7,725 and 16,365 is: 34,668.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,725 : 16,365 = 16,365 : x
  2. Step 2: Convert to fraction form
    7,725/16,365 = 16,365/x
  3. Step 3: Cross multiply
    7,725x = 16,365 × 16,365
  4. Step 4: Simplify right side
    7,725x = 267,813,225
  5. Step 5: Solve for x
    x = 267,813,225/7,725
  6. Step 6: Final answer
    x = 34,668.38

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.