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Finding the Fourth Proportional to 6,629.28, 9,149.94 and 4,508.28

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Solution

The fourth proportional to 6,629.28, 9,149.94 and 4,508.28 is: 6,222.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,629.28 : 9,149.94 = 4,508.28 : x
  2. Step 2: Convert to fraction form
    6,629.28/9,149.94 = 4,508.28/x
  3. Step 3: Cross multiply
    6,629.28x = 9,149.94 × 4,508.28
  4. Step 4: Simplify right side
    6,629.28x = 41,250,491.50
  5. Step 5: Solve for x
    x = 41,250,491.50/6,629.28
  6. Step 6: Final answer
    x = 6,222.47

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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.