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Finding the Fourth Proportional to 2,755.69, 4,134.35 and 1,111.39

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Solution

The fourth proportional to 2,755.69, 4,134.35 and 1,111.39 is: 1,667.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.69 : 4,134.35 = 1,111.39 : x
  2. Step 2: Convert to fraction form
    2,755.69/4,134.35 = 1,111.39/x
  3. Step 3: Cross multiply
    2,755.69x = 4,134.35 × 1,111.39
  4. Step 4: Simplify right side
    2,755.69x = 4,594,875.25
  5. Step 5: Solve for x
    x = 4,594,875.25/2,755.69
  6. Step 6: Final answer
    x = 1,667.41

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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.