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Finding the Fourth Proportional to 8,763.28, 13,140.08 and 5,993.08

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Solution

The fourth proportional to 8,763.28, 13,140.08 and 5,993.08 is: 8,986.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763.28 : 13,140.08 = 5,993.08 : x
  2. Step 2: Convert to fraction form
    8,763.28/13,140.08 = 5,993.08/x
  3. Step 3: Cross multiply
    8,763.28x = 13,140.08 × 5,993.08
  4. Step 4: Simplify right side
    8,763.28x = 78,749,550.65
  5. Step 5: Solve for x
    x = 78,749,550.65/8,763.28
  6. Step 6: Final answer
    x = 8,986.31

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1.5x scale

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.