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Finding the Fourth Proportional to 2,975.92, 4,464.33 and 784.82

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Solution

The fourth proportional to 2,975.92, 4,464.33 and 784.82 is: 1,177.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.92 : 4,464.33 = 784.82 : x
  2. Step 2: Convert to fraction form
    2,975.92/4,464.33 = 784.82/x
  3. Step 3: Cross multiply
    2,975.92x = 4,464.33 × 784.82
  4. Step 4: Simplify right side
    2,975.92x = 3,503,673.15
  5. Step 5: Solve for x
    x = 3,503,673.15/2,975.92
  6. Step 6: Final answer
    x = 1,177.34

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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.