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Finding the Fourth Proportional to 6,650.63, 9,178.89 and 5,054.68

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Solution

The fourth proportional to 6,650.63, 9,178.89 and 5,054.68 is: 6,976.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,650.63 : 9,178.89 = 5,054.68 : x
  2. Step 2: Convert to fraction form
    6,650.63/9,178.89 = 5,054.68/x
  3. Step 3: Cross multiply
    6,650.63x = 9,178.89 × 5,054.68
  4. Step 4: Simplify right side
    6,650.63x = 46,396,344.22
  5. Step 5: Solve for x
    x = 46,396,344.22/6,650.63
  6. Step 6: Final answer
    x = 6,976.23

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Double scale
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Similar ratio
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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.