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Finding the Fourth Proportional to 5,651.45, 7,798.49 and 3,260.88

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Solution

The fourth proportional to 5,651.45, 7,798.49 and 3,260.88 is: 4,499.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,651.45 : 7,798.49 = 3,260.88 : x
  2. Step 2: Convert to fraction form
    5,651.45/7,798.49 = 3,260.88/x
  3. Step 3: Cross multiply
    5,651.45x = 7,798.49 × 3,260.88
  4. Step 4: Simplify right side
    5,651.45x = 25,429,940.07
  5. Step 5: Solve for x
    x = 25,429,940.07/5,651.45
  6. Step 6: Final answer
    x = 4,499.72

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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.