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Finding the Fourth Proportional to 4,889.28, 6,747.21 and 2,651.16

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Solution

The fourth proportional to 4,889.28, 6,747.21 and 2,651.16 is: 3,658.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,889.28 : 6,747.21 = 2,651.16 : x
  2. Step 2: Convert to fraction form
    4,889.28/6,747.21 = 2,651.16/x
  3. Step 3: Cross multiply
    4,889.28x = 6,747.21 × 2,651.16
  4. Step 4: Simplify right side
    4,889.28x = 17,887,933.26
  5. Step 5: Solve for x
    x = 17,887,933.26/4,889.28
  6. Step 6: Final answer
    x = 3,658.60

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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.