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Finding the Third Proportional to 7,120 and 14,936

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Solution

The third proportional to 7,120 and 14,936 is: 31,332.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120 : 14,936 = 14,936 : x
  2. Step 2: Convert to fraction form
    7,120/14,936 = 14,936/x
  3. Step 3: Cross multiply
    7,120x = 14,936 × 14,936
  4. Step 4: Simplify right side
    7,120x = 223,084,096
  5. Step 5: Solve for x
    x = 223,084,096/7,120
  6. Step 6: Final answer
    x = 31,332.04

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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.