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Finding the Fourth Proportional to 6,661.17, 9,191.34 and 3,827.99

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Solution

The fourth proportional to 6,661.17, 9,191.34 and 3,827.99 is: 5,282.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,661.17 : 9,191.34 = 3,827.99 : x
  2. Step 2: Convert to fraction form
    6,661.17/9,191.34 = 3,827.99/x
  3. Step 3: Cross multiply
    6,661.17x = 9,191.34 × 3,827.99
  4. Step 4: Simplify right side
    6,661.17x = 35,184,380.58
  5. Step 5: Solve for x
    x = 35,184,380.58/6,661.17
  6. Step 6: Final answer
    x = 5,282.01

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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.