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Finding the Fourth Proportional to 7,781.24, 10,738.02 and 4,244.48

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Solution

The fourth proportional to 7,781.24, 10,738.02 and 4,244.48 is: 5,857.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,781.24 : 10,738.02 = 4,244.48 : x
  2. Step 2: Convert to fraction form
    7,781.24/10,738.02 = 4,244.48/x
  3. Step 3: Cross multiply
    7,781.24x = 10,738.02 × 4,244.48
  4. Step 4: Simplify right side
    7,781.24x = 45,577,311.13
  5. Step 5: Solve for x
    x = 45,577,311.13/7,781.24
  6. Step 6: Final answer
    x = 5,857.33

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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.