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Finding the Fourth Proportional to 7,781.37, 10,738.22 and 4,244.37

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Solution

The fourth proportional to 7,781.37, 10,738.22 and 4,244.37 is: 5,857.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,781.37 : 10,738.22 = 4,244.37 : x
  2. Step 2: Convert to fraction form
    7,781.37/10,738.22 = 4,244.37/x
  3. Step 3: Cross multiply
    7,781.37x = 10,738.22 × 4,244.37
  4. Step 4: Simplify right side
    7,781.37x = 45,576,957.60
  5. Step 5: Solve for x
    x = 45,576,957.60/7,781.37
  6. Step 6: Final answer
    x = 5,857.19

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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.