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Finding the Third Proportional to 1,800.19 and 3,926.56

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Solution

The third proportional to 1,800.19 and 3,926.56 is: 8,564.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,800.19 : 3,926.56 = 3,926.56 : x
  2. Step 2: Convert to fraction form
    1,800.19/3,926.56 = 3,926.56/x
  3. Step 3: Cross multiply
    1,800.19x = 3,926.56 × 3,926.56
  4. Step 4: Simplify right side
    1,800.19x = 15,417,893.07
  5. Step 5: Solve for x
    x = 15,417,893.07/1,800.19
  6. Step 6: Final answer
    x = 8,564.60

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.