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Finding the Fourth Proportional to 6,667.29, 9,991.22 and 4,723.29

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Solution

The fourth proportional to 6,667.29, 9,991.22 and 4,723.29 is: 7,078.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,667.29 : 9,991.22 = 4,723.29 : x
  2. Step 2: Convert to fraction form
    6,667.29/9,991.22 = 4,723.29/x
  3. Step 3: Cross multiply
    6,667.29x = 9,991.22 × 4,723.29
  4. Step 4: Simplify right side
    6,667.29x = 47,191,405.90
  5. Step 5: Solve for x
    x = 47,191,405.90/6,667.29
  6. Step 6: Final answer
    x = 7,078.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.