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Finding the Fourth Proportional to 7,965.72, 11,952.72 and 4,453.56

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Solution

The fourth proportional to 7,965.72, 11,952.72 and 4,453.56 is: 6,682.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.72 : 11,952.72 = 4,453.56 : x
  2. Step 2: Convert to fraction form
    7,965.72/11,952.72 = 4,453.56/x
  3. Step 3: Cross multiply
    7,965.72x = 11,952.72 × 4,453.56
  4. Step 4: Simplify right side
    7,965.72x = 53,232,155.68
  5. Step 5: Solve for x
    x = 53,232,155.68/7,965.72
  6. Step 6: Final answer
    x = 6,682.65

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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.