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Finding the Third Proportional to 4,415 and 6,613

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Solution

The third proportional to 4,415 and 6,613 is: 9,905.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,415 : 6,613 = 6,613 : x
  2. Step 2: Convert to fraction form
    4,415/6,613 = 6,613/x
  3. Step 3: Cross multiply
    4,415x = 6,613 × 6,613
  4. Step 4: Simplify right side
    4,415x = 43,731,769
  5. Step 5: Solve for x
    x = 43,731,769/4,415
  6. Step 6: Final answer
    x = 9,905.27

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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.