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Finding the Third Proportional to 11,670.75 and 15,319.13

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Solution

The third proportional to 11,670.75 and 15,319.13 is: 20,108.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,670.75 : 15,319.13 = 15,319.13 : x
  2. Step 2: Convert to fraction form
    11,670.75/15,319.13 = 15,319.13/x
  3. Step 3: Cross multiply
    11,670.75x = 15,319.13 × 15,319.13
  4. Step 4: Simplify right side
    11,670.75x = 234,675,590.77
  5. Step 5: Solve for x
    x = 234,675,590.77/11,670.75
  6. Step 6: Final answer
    x = 20,108.01

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.