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Finding the Fourth Proportional to 7,950.76, 11,926.17 and 2,756.65

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Solution

The fourth proportional to 7,950.76, 11,926.17 and 2,756.65 is: 4,134.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,950.76 : 11,926.17 = 2,756.65 : x
  2. Step 2: Convert to fraction form
    7,950.76/11,926.17 = 2,756.65/x
  3. Step 3: Cross multiply
    7,950.76x = 11,926.17 × 2,756.65
  4. Step 4: Simplify right side
    7,950.76x = 32,876,276.53
  5. Step 5: Solve for x
    x = 32,876,276.53/7,950.76
  6. Step 6: Final answer
    x = 4,134.99

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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.