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Finding the Third Proportional to 4,154 and 6,221

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Solution

The third proportional to 4,154 and 6,221 is: 9,316.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,154 : 6,221 = 6,221 : x
  2. Step 2: Convert to fraction form
    4,154/6,221 = 6,221/x
  3. Step 3: Cross multiply
    4,154x = 6,221 × 6,221
  4. Step 4: Simplify right side
    4,154x = 38,700,841
  5. Step 5: Solve for x
    x = 38,700,841/4,154
  6. Step 6: Final answer
    x = 9,316.52

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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.