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Finding the Fourth Proportional to 6,279.24, 8,664.24 and 3,626.76

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Solution

The fourth proportional to 6,279.24, 8,664.24 and 3,626.76 is: 5,004.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,279.24 : 8,664.24 = 3,626.76 : x
  2. Step 2: Convert to fraction form
    6,279.24/8,664.24 = 3,626.76/x
  3. Step 3: Cross multiply
    6,279.24x = 8,664.24 × 3,626.76
  4. Step 4: Simplify right side
    6,279.24x = 31,423,119.06
  5. Step 5: Solve for x
    x = 31,423,119.06/6,279.24
  6. Step 6: Final answer
    x = 5,004.29

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Half scale
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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.