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Finding the Third Proportional to 7,156 and 10,692

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Solution

The third proportional to 7,156 and 10,692 is: 15,975.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,156 : 10,692 = 10,692 : x
  2. Step 2: Convert to fraction form
    7,156/10,692 = 10,692/x
  3. Step 3: Cross multiply
    7,156x = 10,692 × 10,692
  4. Step 4: Simplify right side
    7,156x = 114,318,864
  5. Step 5: Solve for x
    x = 114,318,864/7,156
  6. Step 6: Final answer
    x = 15,975.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.