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Finding the Third Proportional to 4,438 and 6,658

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Solution

The third proportional to 4,438 and 6,658 is: 9,988.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,438 : 6,658 = 6,658 : x
  2. Step 2: Convert to fraction form
    4,438/6,658 = 6,658/x
  3. Step 3: Cross multiply
    4,438x = 6,658 × 6,658
  4. Step 4: Simplify right side
    4,438x = 44,328,964
  5. Step 5: Solve for x
    x = 44,328,964/4,438
  6. Step 6: Final answer
    x = 9,988.50

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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.