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Finding the Fourth Proportional to 7,994.72, 11,034.04 and 6,103.20

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Solution

The fourth proportional to 7,994.72, 11,034.04 and 6,103.20 is: 8,423.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.72 : 11,034.04 = 6,103.20 : x
  2. Step 2: Convert to fraction form
    7,994.72/11,034.04 = 6,103.20/x
  3. Step 3: Cross multiply
    7,994.72x = 11,034.04 × 6,103.20
  4. Step 4: Simplify right side
    7,994.72x = 67,342,952.93
  5. Step 5: Solve for x
    x = 67,342,952.93/7,994.72
  6. Step 6: Final answer
    x = 8,423.43

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Half scale
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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.