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Finding the Fourth Proportional to 4,866.81, 6,716.37 and 2,879.07

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Solution

The fourth proportional to 4,866.81, 6,716.37 and 2,879.07 is: 3,973.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,866.81 : 6,716.37 = 2,879.07 : x
  2. Step 2: Convert to fraction form
    4,866.81/6,716.37 = 2,879.07/x
  3. Step 3: Cross multiply
    4,866.81x = 6,716.37 × 2,879.07
  4. Step 4: Simplify right side
    4,866.81x = 19,336,899.38
  5. Step 5: Solve for x
    x = 19,336,899.38/4,866.81
  6. Step 6: Final answer
    x = 3,973.22

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1.5x scale

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.