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Finding the Fourth Proportional to 6,643.04, 9,167.45 and 3,658.88

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Solution

The fourth proportional to 6,643.04, 9,167.45 and 3,658.88 is: 5,049.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643.04 : 9,167.45 = 3,658.88 : x
  2. Step 2: Convert to fraction form
    6,643.04/9,167.45 = 3,658.88/x
  3. Step 3: Cross multiply
    6,643.04x = 9,167.45 × 3,658.88
  4. Step 4: Simplify right side
    6,643.04x = 33,542,599.46
  5. Step 5: Solve for x
    x = 33,542,599.46/6,643.04
  6. Step 6: Final answer
    x = 5,049.28

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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.