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Finding the Fourth Proportional to 1,866.11, 2,575.24 and 1,026.79

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Solution

The fourth proportional to 1,866.11, 2,575.24 and 1,026.79 is: 1,416.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866.11 : 2,575.24 = 1,026.79 : x
  2. Step 2: Convert to fraction form
    1,866.11/2,575.24 = 1,026.79/x
  3. Step 3: Cross multiply
    1,866.11x = 2,575.24 × 1,026.79
  4. Step 4: Simplify right side
    1,866.11x = 2,644,225.52
  5. Step 5: Solve for x
    x = 2,644,225.52/1,866.11
  6. Step 6: Final answer
    x = 1,416.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.