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Finding the Fourth Proportional to 6,993.52, 10,458.72 and 6,218.08

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Solution

The fourth proportional to 6,993.52, 10,458.72 and 6,218.08 is: 9,299.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,993.52 : 10,458.72 = 6,218.08 : x
  2. Step 2: Convert to fraction form
    6,993.52/10,458.72 = 6,218.08/x
  3. Step 3: Cross multiply
    6,993.52x = 10,458.72 × 6,218.08
  4. Step 4: Simplify right side
    6,993.52x = 65,033,157.66
  5. Step 5: Solve for x
    x = 65,033,157.66/6,993.52
  6. Step 6: Final answer
    x = 9,299.06

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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.