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Finding the Fourth Proportional to 4,975.31, 6,866 and 2,850.93

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Solution

The fourth proportional to 4,975.31, 6,866 and 2,850.93 is: 3,934.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,975.31 : 6,866 = 2,850.93 : x
  2. Step 2: Convert to fraction form
    4,975.31/6,866 = 2,850.93/x
  3. Step 3: Cross multiply
    4,975.31x = 6,866 × 2,850.93
  4. Step 4: Simplify right side
    4,975.31x = 19,574,485.38
  5. Step 5: Solve for x
    x = 19,574,485.38/4,975.31
  6. Step 6: Final answer
    x = 3,934.32

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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.