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Finding the Third Proportional to 4,311 and 4,707

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Solution

The third proportional to 4,311 and 4,707 is: 5,139.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311 : 4,707 = 4,707 : x
  2. Step 2: Convert to fraction form
    4,311/4,707 = 4,707/x
  3. Step 3: Cross multiply
    4,311x = 4,707 × 4,707
  4. Step 4: Simplify right side
    4,311x = 22,155,849
  5. Step 5: Solve for x
    x = 22,155,849/4,311
  6. Step 6: Final answer
    x = 5,139.38

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.