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Finding the Fourth Proportional to 6,622.39, 9,940.88 and 5,595.13

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Solution

The fourth proportional to 6,622.39, 9,940.88 and 5,595.13 is: 8,398.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.39 : 9,940.88 = 5,595.13 : x
  2. Step 2: Convert to fraction form
    6,622.39/9,940.88 = 5,595.13/x
  3. Step 3: Cross multiply
    6,622.39x = 9,940.88 × 5,595.13
  4. Step 4: Simplify right side
    6,622.39x = 55,620,515.91
  5. Step 5: Solve for x
    x = 55,620,515.91/6,622.39
  6. Step 6: Final answer
    x = 8,398.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.