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Finding the Third Proportional to 3,472 and 7,136

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Solution

The third proportional to 3,472 and 7,136 is: 14,666.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,472 : 7,136 = 7,136 : x
  2. Step 2: Convert to fraction form
    3,472/7,136 = 7,136/x
  3. Step 3: Cross multiply
    3,472x = 7,136 × 7,136
  4. Step 4: Simplify right side
    3,472x = 50,922,496
  5. Step 5: Solve for x
    x = 50,922,496/3,472
  6. Step 6: Final answer
    x = 14,666.62

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.