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Finding the Fourth Proportional to 6,622.99, 9,137.11 and 4,266.49

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Solution

The fourth proportional to 6,622.99, 9,137.11 and 4,266.49 is: 5,886.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.99 : 9,137.11 = 4,266.49 : x
  2. Step 2: Convert to fraction form
    6,622.99/9,137.11 = 4,266.49/x
  3. Step 3: Cross multiply
    6,622.99x = 9,137.11 × 4,266.49
  4. Step 4: Simplify right side
    6,622.99x = 38,983,388.44
  5. Step 5: Solve for x
    x = 38,983,388.44/6,622.99
  6. Step 6: Final answer
    x = 5,886.07

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Double 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.