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Finding the Fourth Proportional to 7,952.56, 11,917.55 and 5,856.12

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Solution

The fourth proportional to 7,952.56, 11,917.55 and 5,856.12 is: 8,775.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,952.56 : 11,917.55 = 5,856.12 : x
  2. Step 2: Convert to fraction form
    7,952.56/11,917.55 = 5,856.12/x
  3. Step 3: Cross multiply
    7,952.56x = 11,917.55 × 5,856.12
  4. Step 4: Simplify right side
    7,952.56x = 69,790,617.55
  5. Step 5: Solve for x
    x = 69,790,617.55/7,952.56
  6. Step 6: Final answer
    x = 8,775.87

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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.