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Finding the Fourth Proportional to 4,867.96, 6,718.29 and 2,772.22

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Solution

The fourth proportional to 4,867.96, 6,718.29 and 2,772.22 is: 3,825.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,867.96 : 6,718.29 = 2,772.22 : x
  2. Step 2: Convert to fraction form
    4,867.96/6,718.29 = 2,772.22/x
  3. Step 3: Cross multiply
    4,867.96x = 6,718.29 × 2,772.22
  4. Step 4: Simplify right side
    4,867.96x = 18,624,577.90
  5. Step 5: Solve for x
    x = 18,624,577.90/4,867.96
  6. Step 6: Final answer
    x = 3,825.95

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1.5x scale

Why These Related Problems?

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