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Finding the Third Proportional to 7,356 and 17,772

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Solution

The third proportional to 7,356 and 17,772 is: 42,936.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,356 : 17,772 = 17,772 : x
  2. Step 2: Convert to fraction form
    7,356/17,772 = 17,772/x
  3. Step 3: Cross multiply
    7,356x = 17,772 × 17,772
  4. Step 4: Simplify right side
    7,356x = 315,843,984
  5. Step 5: Solve for x
    x = 315,843,984/7,356
  6. Step 6: Final answer
    x = 42,936.92

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.