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Finding the Third Proportional to 7,408.13 and 15,987.38

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Solution

The third proportional to 7,408.13 and 15,987.38 is: 34,502.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.13 : 15,987.38 = 15,987.38 : x
  2. Step 2: Convert to fraction form
    7,408.13/15,987.38 = 15,987.38/x
  3. Step 3: Cross multiply
    7,408.13x = 15,987.38 × 15,987.38
  4. Step 4: Simplify right side
    7,408.13x = 255,596,159.39
  5. Step 5: Solve for x
    x = 255,596,159.39/7,408.13
  6. Step 6: Final answer
    x = 34,502.14

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.