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Finding the Fourth Proportional to 2,724.17, 4,085.44 and 968.86

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Solution

The fourth proportional to 2,724.17, 4,085.44 and 968.86 is: 1,453.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,724.17 : 4,085.44 = 968.86 : x
  2. Step 2: Convert to fraction form
    2,724.17/4,085.44 = 968.86/x
  3. Step 3: Cross multiply
    2,724.17x = 4,085.44 × 968.86
  4. Step 4: Simplify right side
    2,724.17x = 3,958,222.08
  5. Step 5: Solve for x
    x = 3,958,222.08/2,724.17
  6. Step 6: Final answer
    x = 1,453.00

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Why These Related Problems?

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