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Finding the Fourth Proportional to 4,797.63, 6,620.67 and 2,809.22

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Solution

The fourth proportional to 4,797.63, 6,620.67 and 2,809.22 is: 3,876.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,797.63 : 6,620.67 = 2,809.22 : x
  2. Step 2: Convert to fraction form
    4,797.63/6,620.67 = 2,809.22/x
  3. Step 3: Cross multiply
    4,797.63x = 6,620.67 × 2,809.22
  4. Step 4: Simplify right side
    4,797.63x = 18,598,885.47
  5. Step 5: Solve for x
    x = 18,598,885.47/4,797.63
  6. Step 6: Final answer
    x = 3,876.68

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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.