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Finding the Fourth Proportional to 6,221.08, 8,585.08 and 3,426.56

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Solution

The fourth proportional to 6,221.08, 8,585.08 and 3,426.56 is: 4,728.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,221.08 : 8,585.08 = 3,426.56 : x
  2. Step 2: Convert to fraction form
    6,221.08/8,585.08 = 3,426.56/x
  3. Step 3: Cross multiply
    6,221.08x = 8,585.08 × 3,426.56
  4. Step 4: Simplify right side
    6,221.08x = 29,417,291.72
  5. Step 5: Solve for x
    x = 29,417,291.72/6,221.08
  6. Step 6: Final answer
    x = 4,728.65

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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.