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Finding the Third Proportional to 4,368 and 6,491

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Solution

The third proportional to 4,368 and 6,491 is: 9,645.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,368 : 6,491 = 6,491 : x
  2. Step 2: Convert to fraction form
    4,368/6,491 = 6,491/x
  3. Step 3: Cross multiply
    4,368x = 6,491 × 6,491
  4. Step 4: Simplify right side
    4,368x = 42,133,081
  5. Step 5: Solve for x
    x = 42,133,081/4,368
  6. Step 6: Final answer
    x = 9,645.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.