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Finding the Fourth Proportional to 1,847.16, 2,770.76 and 548.63

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Solution

The fourth proportional to 1,847.16, 2,770.76 and 548.63 is: 822.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,847.16 : 2,770.76 = 548.63 : x
  2. Step 2: Convert to fraction form
    1,847.16/2,770.76 = 548.63/x
  3. Step 3: Cross multiply
    1,847.16x = 2,770.76 × 548.63
  4. Step 4: Simplify right side
    1,847.16x = 1,520,122.06
  5. Step 5: Solve for x
    x = 1,520,122.06/1,847.16
  6. Step 6: Final answer
    x = 822.95

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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.