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Finding the Fourth Proportional to 5,755.79, 7,943.70 and 3,238.01

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Solution

The fourth proportional to 5,755.79, 7,943.70 and 3,238.01 is: 4,468.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,755.79 : 7,943.70 = 3,238.01 : x
  2. Step 2: Convert to fraction form
    5,755.79/7,943.70 = 3,238.01/x
  3. Step 3: Cross multiply
    5,755.79x = 7,943.70 × 3,238.01
  4. Step 4: Simplify right side
    5,755.79x = 25,721,754.93
  5. Step 5: Solve for x
    x = 25,721,754.93/5,755.79
  6. Step 6: Final answer
    x = 4,468.85

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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.