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Finding the Fourth Proportional to 2,880.92, 4,293.97 and 2,716.88

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Solution

The fourth proportional to 2,880.92, 4,293.97 and 2,716.88 is: 4,049.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.92 : 4,293.97 = 2,716.88 : x
  2. Step 2: Convert to fraction form
    2,880.92/4,293.97 = 2,716.88/x
  3. Step 3: Cross multiply
    2,880.92x = 4,293.97 × 2,716.88
  4. Step 4: Simplify right side
    2,880.92x = 11,666,201.21
  5. Step 5: Solve for x
    x = 11,666,201.21/2,880.92
  6. Step 6: Final answer
    x = 4,049.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.