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Finding the Third Proportional to 1,416.63 and 2,188.13

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Solution

The third proportional to 1,416.63 and 2,188.13 is: 3,379.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416.63 : 2,188.13 = 2,188.13 : x
  2. Step 2: Convert to fraction form
    1,416.63/2,188.13 = 2,188.13/x
  3. Step 3: Cross multiply
    1,416.63x = 2,188.13 × 2,188.13
  4. Step 4: Simplify right side
    1,416.63x = 4,787,891.02
  5. Step 5: Solve for x
    x = 4,787,891.02/1,416.63
  6. Step 6: Final answer
    x = 3,379.79

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.