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Finding the Third Proportional to 7,122 and 14,982

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Solution

The third proportional to 7,122 and 14,982 is: 31,516.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122 : 14,982 = 14,982 : x
  2. Step 2: Convert to fraction form
    7,122/14,982 = 14,982/x
  3. Step 3: Cross multiply
    7,122x = 14,982 × 14,982
  4. Step 4: Simplify right side
    7,122x = 224,460,324
  5. Step 5: Solve for x
    x = 224,460,324/7,122
  6. Step 6: Final answer
    x = 31,516.47

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.