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Finding the Third Proportional to 3,100.13 and 6,503.63

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Solution

The third proportional to 3,100.13 and 6,503.63 is: 13,643.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.13 : 6,503.63 = 6,503.63 : x
  2. Step 2: Convert to fraction form
    3,100.13/6,503.63 = 6,503.63/x
  3. Step 3: Cross multiply
    3,100.13x = 6,503.63 × 6,503.63
  4. Step 4: Simplify right side
    3,100.13x = 42,297,138.14
  5. Step 5: Solve for x
    x = 42,297,138.14/3,100.13
  6. Step 6: Final answer
    x = 13,643.69

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.