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Finding the Fourth Proportional to 7,950.24, 11,922.48 and 2,760.48

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Solution

The fourth proportional to 7,950.24, 11,922.48 and 2,760.48 is: 4,139.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,950.24 : 11,922.48 = 2,760.48 : x
  2. Step 2: Convert to fraction form
    7,950.24/11,922.48 = 2,760.48/x
  3. Step 3: Cross multiply
    7,950.24x = 11,922.48 × 2,760.48
  4. Step 4: Simplify right side
    7,950.24x = 32,911,767.59
  5. Step 5: Solve for x
    x = 32,911,767.59/7,950.24
  6. Step 6: Final answer
    x = 4,139.72

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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.