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Finding the Third Proportional to 4,418 and 9,316

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Solution

The third proportional to 4,418 and 9,316 is: 19,644.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,418 : 9,316 = 9,316 : x
  2. Step 2: Convert to fraction form
    4,418/9,316 = 9,316/x
  3. Step 3: Cross multiply
    4,418x = 9,316 × 9,316
  4. Step 4: Simplify right side
    4,418x = 86,787,856
  5. Step 5: Solve for x
    x = 86,787,856/4,418
  6. Step 6: Final answer
    x = 19,644.15

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.