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Finding the Fourth Proportional to 6,993.28, 10,509.76 and 6,734.72

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Solution

The fourth proportional to 6,993.28, 10,509.76 and 6,734.72 is: 10,121.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,993.28 : 10,509.76 = 6,734.72 : x
  2. Step 2: Convert to fraction form
    6,993.28/10,509.76 = 6,734.72/x
  3. Step 3: Cross multiply
    6,993.28x = 10,509.76 × 6,734.72
  4. Step 4: Simplify right side
    6,993.28x = 70,780,290.87
  5. Step 5: Solve for x
    x = 70,780,290.87/6,993.28
  6. Step 6: Final answer
    x = 10,121.19

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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.