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Finding the Third Proportional to 7,472 and 16,144

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Solution

The third proportional to 7,472 and 16,144 is: 34,880.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,472 : 16,144 = 16,144 : x
  2. Step 2: Convert to fraction form
    7,472/16,144 = 16,144/x
  3. Step 3: Cross multiply
    7,472x = 16,144 × 16,144
  4. Step 4: Simplify right side
    7,472x = 260,628,736
  5. Step 5: Solve for x
    x = 260,628,736/7,472
  6. Step 6: Final answer
    x = 34,880.72

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.