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Finding the Fourth Proportional to 5,791.84, 8,687.76 and 1,843

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Solution

The fourth proportional to 5,791.84, 8,687.76 and 1,843 is: 2,764.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,791.84 : 8,687.76 = 1,843 : x
  2. Step 2: Convert to fraction form
    5,791.84/8,687.76 = 1,843/x
  3. Step 3: Cross multiply
    5,791.84x = 8,687.76 × 1,843
  4. Step 4: Simplify right side
    5,791.84x = 16,011,541.68
  5. Step 5: Solve for x
    x = 16,011,541.68/5,791.84
  6. Step 6: Final answer
    x = 2,764.50

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1.5x scale

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.