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Finding the Third Proportional to 3,412.13 and 4,012.88

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Solution

The third proportional to 3,412.13 and 4,012.88 is: 4,719.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.13 : 4,012.88 = 4,012.88 : x
  2. Step 2: Convert to fraction form
    3,412.13/4,012.88 = 4,012.88/x
  3. Step 3: Cross multiply
    3,412.13x = 4,012.88 × 4,012.88
  4. Step 4: Simplify right side
    3,412.13x = 16,103,165.77
  5. Step 5: Solve for x
    x = 16,103,165.77/3,412.13
  6. Step 6: Final answer
    x = 4,719.40

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.