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Finding the Fourth Proportional to 9,849.76, 14,772.78 and 2,828.32

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Solution

The fourth proportional to 9,849.76, 14,772.78 and 2,828.32 is: 4,241.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,849.76 : 14,772.78 = 2,828.32 : x
  2. Step 2: Convert to fraction form
    9,849.76/14,772.78 = 2,828.32/x
  3. Step 3: Cross multiply
    9,849.76x = 14,772.78 × 2,828.32
  4. Step 4: Simplify right side
    9,849.76x = 41,782,149.13
  5. Step 5: Solve for x
    x = 41,782,149.13/9,849.76
  6. Step 6: Final answer
    x = 4,241.95

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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.