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Finding the Fourth Proportional to 2,755.93, 4,130.38 and 1,291.86

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Solution

The fourth proportional to 2,755.93, 4,130.38 and 1,291.86 is: 1,936.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.93 : 4,130.38 = 1,291.86 : x
  2. Step 2: Convert to fraction form
    2,755.93/4,130.38 = 1,291.86/x
  3. Step 3: Cross multiply
    2,755.93x = 4,130.38 × 1,291.86
  4. Step 4: Simplify right side
    2,755.93x = 5,335,872.71
  5. Step 5: Solve for x
    x = 5,335,872.71/2,755.93
  6. Step 6: Final answer
    x = 1,936.14

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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.