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Finding the Third Proportional to 1,055.81 and 2,008.13

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Solution

The third proportional to 1,055.81 and 2,008.13 is: 3,819.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055.81 : 2,008.13 = 2,008.13 : x
  2. Step 2: Convert to fraction form
    1,055.81/2,008.13 = 2,008.13/x
  3. Step 3: Cross multiply
    1,055.81x = 2,008.13 × 2,008.13
  4. Step 4: Simplify right side
    1,055.81x = 4,032,566.02
  5. Step 5: Solve for x
    x = 4,032,566.02/1,055.81
  6. Step 6: Final answer
    x = 3,819.40

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.