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Finding the Fourth Proportional to 7,975.66, 11,958.68 and 3,045.66

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Solution

The fourth proportional to 7,975.66, 11,958.68 and 3,045.66 is: 4,566.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,975.66 : 11,958.68 = 3,045.66 : x
  2. Step 2: Convert to fraction form
    7,975.66/11,958.68 = 3,045.66/x
  3. Step 3: Cross multiply
    7,975.66x = 11,958.68 × 3,045.66
  4. Step 4: Simplify right side
    7,975.66x = 36,422,073.33
  5. Step 5: Solve for x
    x = 36,422,073.33/7,975.66
  6. Step 6: Final answer
    x = 4,566.65

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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.