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Finding the Third Proportional to 3,417.19 and 6,697.69

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Solution

The third proportional to 3,417.19 and 6,697.69 is: 13,127.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.19 : 6,697.69 = 6,697.69 : x
  2. Step 2: Convert to fraction form
    3,417.19/6,697.69 = 6,697.69/x
  3. Step 3: Cross multiply
    3,417.19x = 6,697.69 × 6,697.69
  4. Step 4: Simplify right side
    3,417.19x = 44,859,017.85
  5. Step 5: Solve for x
    x = 44,859,017.85/3,417.19
  6. Step 6: Final answer
    x = 13,127.47

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Why These Related Problems?

These problems maintain the same ratio (1.96) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.