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Finding the Fourth Proportional to 6,682.64, 9,221.08 and 3,698.47

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Solution

The fourth proportional to 6,682.64, 9,221.08 and 3,698.47 is: 5,103.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,682.64 : 9,221.08 = 3,698.47 : x
  2. Step 2: Convert to fraction form
    6,682.64/9,221.08 = 3,698.47/x
  3. Step 3: Cross multiply
    6,682.64x = 9,221.08 × 3,698.47
  4. Step 4: Simplify right side
    6,682.64x = 34,103,887.25
  5. Step 5: Solve for x
    x = 34,103,887.25/6,682.64
  6. Step 6: Final answer
    x = 5,103.35

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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.