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Finding the Fourth Proportional to 5,791.40, 7,983.16 and 4,850.36

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Solution

The fourth proportional to 5,791.40, 7,983.16 and 4,850.36 is: 6,685.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,791.40 : 7,983.16 = 4,850.36 : x
  2. Step 2: Convert to fraction form
    5,791.40/7,983.16 = 4,850.36/x
  3. Step 3: Cross multiply
    5,791.40x = 7,983.16 × 4,850.36
  4. Step 4: Simplify right side
    5,791.40x = 38,721,199.94
  5. Step 5: Solve for x
    x = 38,721,199.94/5,791.40
  6. Step 6: Final answer
    x = 6,685.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.