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Finding the Third Proportional to 7,390 and 16,217

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Solution

The third proportional to 7,390 and 16,217 is: 35,587.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390 : 16,217 = 16,217 : x
  2. Step 2: Convert to fraction form
    7,390/16,217 = 16,217/x
  3. Step 3: Cross multiply
    7,390x = 16,217 × 16,217
  4. Step 4: Simplify right side
    7,390x = 262,991,089
  5. Step 5: Solve for x
    x = 262,991,089/7,390
  6. Step 6: Final answer
    x = 35,587.43

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.