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Finding the Fourth Proportional to 7,950.51, 11,925.79 and 2,756.39

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Solution

The fourth proportional to 7,950.51, 11,925.79 and 2,756.39 is: 4,134.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,950.51 : 11,925.79 = 2,756.39 : x
  2. Step 2: Convert to fraction form
    7,950.51/11,925.79 = 2,756.39/x
  3. Step 3: Cross multiply
    7,950.51x = 11,925.79 × 2,756.39
  4. Step 4: Simplify right side
    7,950.51x = 32,872,061.78
  5. Step 5: Solve for x
    x = 32,872,061.78/7,950.51
  6. Step 6: Final answer
    x = 4,134.59

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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.