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Finding the Fourth Proportional to 6,667.60, 9,240.18 and 6,573.64

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Solution

The fourth proportional to 6,667.60, 9,240.18 and 6,573.64 is: 9,109.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,667.60 : 9,240.18 = 6,573.64 : x
  2. Step 2: Convert to fraction form
    6,667.60/9,240.18 = 6,573.64/x
  3. Step 3: Cross multiply
    6,667.60x = 9,240.18 × 6,573.64
  4. Step 4: Simplify right side
    6,667.60x = 60,741,616.86
  5. Step 5: Solve for x
    x = 60,741,616.86/6,667.60
  6. Step 6: Final answer
    x = 9,109.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.