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Finding the Fourth Proportional to 8,364.30, 12,546.45 and 8,234.70

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Solution

The fourth proportional to 8,364.30, 12,546.45 and 8,234.70 is: 12,352.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,364.30 : 12,546.45 = 8,234.70 : x
  2. Step 2: Convert to fraction form
    8,364.30/12,546.45 = 8,234.70/x
  3. Step 3: Cross multiply
    8,364.30x = 12,546.45 × 8,234.70
  4. Step 4: Simplify right side
    8,364.30x = 103,316,251.82
  5. Step 5: Solve for x
    x = 103,316,251.82/8,364.30
  6. Step 6: Final answer
    x = 12,352.05

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.