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Finding the Fourth Proportional to 7,963.27, 10,986.10 and 4,813.99

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Solution

The fourth proportional to 7,963.27, 10,986.10 and 4,813.99 is: 6,641.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,963.27 : 10,986.10 = 4,813.99 : x
  2. Step 2: Convert to fraction form
    7,963.27/10,986.10 = 4,813.99/x
  3. Step 3: Cross multiply
    7,963.27x = 10,986.10 × 4,813.99
  4. Step 4: Simplify right side
    7,963.27x = 52,886,975.54
  5. Step 5: Solve for x
    x = 52,886,975.54/7,963.27
  6. Step 6: Final answer
    x = 6,641.36

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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.