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Finding the Fourth Proportional to 3,221.69, 4,824.36 and 2,700.32

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Solution

The fourth proportional to 3,221.69, 4,824.36 and 2,700.32 is: 4,043.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.69 : 4,824.36 = 2,700.32 : x
  2. Step 2: Convert to fraction form
    3,221.69/4,824.36 = 2,700.32/x
  3. Step 3: Cross multiply
    3,221.69x = 4,824.36 × 2,700.32
  4. Step 4: Simplify right side
    3,221.69x = 13,027,291.67
  5. Step 5: Solve for x
    x = 13,027,291.67/3,221.69
  6. Step 6: Final answer
    x = 4,043.63

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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.