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Finding the Third Proportional to 5,167.13 and 5,315.63

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Solution

The third proportional to 5,167.13 and 5,315.63 is: 5,468.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,167.13 : 5,315.63 = 5,315.63 : x
  2. Step 2: Convert to fraction form
    5,167.13/5,315.63 = 5,315.63/x
  3. Step 3: Cross multiply
    5,167.13x = 5,315.63 × 5,315.63
  4. Step 4: Simplify right side
    5,167.13x = 28,255,869.14
  5. Step 5: Solve for x
    x = 28,255,869.14/5,167.13
  6. Step 6: Final answer
    x = 5,468.39

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Why These Related Problems?

These problems maintain the same ratio (1.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.