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Finding the Fourth Proportional to 4,975.68, 6,866.02 and 2,879.94

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Solution

The fourth proportional to 4,975.68, 6,866.02 and 2,879.94 is: 3,974.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,975.68 : 6,866.02 = 2,879.94 : x
  2. Step 2: Convert to fraction form
    4,975.68/6,866.02 = 2,879.94/x
  3. Step 3: Cross multiply
    4,975.68x = 6,866.02 × 2,879.94
  4. Step 4: Simplify right side
    4,975.68x = 19,773,725.64
  5. Step 5: Solve for x
    x = 19,773,725.64/4,975.68
  6. Step 6: Final answer
    x = 3,974.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.