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Finding the Fourth Proportional to 2,618.95, 3,614.15 and 1,440.02

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Solution

The fourth proportional to 2,618.95, 3,614.15 and 1,440.02 is: 1,987.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618.95 : 3,614.15 = 1,440.02 : x
  2. Step 2: Convert to fraction form
    2,618.95/3,614.15 = 1,440.02/x
  3. Step 3: Cross multiply
    2,618.95x = 3,614.15 × 1,440.02
  4. Step 4: Simplify right side
    2,618.95x = 5,204,448.28
  5. Step 5: Solve for x
    x = 5,204,448.28/2,618.95
  6. Step 6: Final answer
    x = 1,987.23

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