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Finding the Fourth Proportional to 7,793.64, 11,690.46 and 3,897.14

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Solution

The fourth proportional to 7,793.64, 11,690.46 and 3,897.14 is: 5,845.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,793.64 : 11,690.46 = 3,897.14 : x
  2. Step 2: Convert to fraction form
    7,793.64/11,690.46 = 3,897.14/x
  3. Step 3: Cross multiply
    7,793.64x = 11,690.46 × 3,897.14
  4. Step 4: Simplify right side
    7,793.64x = 45,559,300.83
  5. Step 5: Solve for x
    x = 45,559,300.83/7,793.64
  6. Step 6: Final answer
    x = 5,845.70

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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.