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Finding the Fourth Proportional to 2,910.94, 4,366.51 and 963.09

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Solution

The fourth proportional to 2,910.94, 4,366.51 and 963.09 is: 1,444.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.94 : 4,366.51 = 963.09 : x
  2. Step 2: Convert to fraction form
    2,910.94/4,366.51 = 963.09/x
  3. Step 3: Cross multiply
    2,910.94x = 4,366.51 × 963.09
  4. Step 4: Simplify right side
    2,910.94x = 4,205,339.71
  5. Step 5: Solve for x
    x = 4,205,339.71/2,910.94
  6. Step 6: Final answer
    x = 1,444.67

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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.