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Finding the Fourth Proportional to 1,847.52, 2,771.20 and 548.96

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Solution

The fourth proportional to 1,847.52, 2,771.20 and 548.96 is: 823.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,847.52 : 2,771.20 = 548.96 : x
  2. Step 2: Convert to fraction form
    1,847.52/2,771.20 = 548.96/x
  3. Step 3: Cross multiply
    1,847.52x = 2,771.20 × 548.96
  4. Step 4: Simplify right side
    1,847.52x = 1,521,277.95
  5. Step 5: Solve for x
    x = 1,521,277.95/1,847.52
  6. Step 6: Final answer
    x = 823.42

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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.