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Finding the Third Proportional to 7,316 and 11,622

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Solution

The third proportional to 7,316 and 11,622 is: 18,462.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,316 : 11,622 = 11,622 : x
  2. Step 2: Convert to fraction form
    7,316/11,622 = 11,622/x
  3. Step 3: Cross multiply
    7,316x = 11,622 × 11,622
  4. Step 4: Simplify right side
    7,316x = 135,070,884
  5. Step 5: Solve for x
    x = 135,070,884/7,316
  6. Step 6: Final answer
    x = 18,462.40

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.