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Finding the Fourth Proportional to 2,565.77, 3,850.38 and 1,105.07

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Solution

The fourth proportional to 2,565.77, 3,850.38 and 1,105.07 is: 1,658.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,565.77 : 3,850.38 = 1,105.07 : x
  2. Step 2: Convert to fraction form
    2,565.77/3,850.38 = 1,105.07/x
  3. Step 3: Cross multiply
    2,565.77x = 3,850.38 × 1,105.07
  4. Step 4: Simplify right side
    2,565.77x = 4,254,920.17
  5. Step 5: Solve for x
    x = 4,254,920.17/2,565.77
  6. Step 6: Final answer
    x = 1,658.34

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.