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Finding the Third Proportional to 5,363 and 8,385

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Solution

The third proportional to 5,363 and 8,385 is: 13,109.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,363 : 8,385 = 8,385 : x
  2. Step 2: Convert to fraction form
    5,363/8,385 = 8,385/x
  3. Step 3: Cross multiply
    5,363x = 8,385 × 8,385
  4. Step 4: Simplify right side
    5,363x = 70,308,225
  5. Step 5: Solve for x
    x = 70,308,225/5,363
  6. Step 6: Final answer
    x = 13,109.87

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.