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Finding the Third Proportional to 3,158 and 4,717

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Solution

The third proportional to 3,158 and 4,717 is: 7,045.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158 : 4,717 = 4,717 : x
  2. Step 2: Convert to fraction form
    3,158/4,717 = 4,717/x
  3. Step 3: Cross multiply
    3,158x = 4,717 × 4,717
  4. Step 4: Simplify right side
    3,158x = 22,250,089
  5. Step 5: Solve for x
    x = 22,250,089/3,158
  6. Step 6: Final answer
    x = 7,045.63

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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.