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Finding the Fourth Proportional to 12,794.76, 19,192.13 and 4,998.11

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Solution

The fourth proportional to 12,794.76, 19,192.13 and 4,998.11 is: 7,497.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,794.76 : 19,192.13 = 4,998.11 : x
  2. Step 2: Convert to fraction form
    12,794.76/19,192.13 = 4,998.11/x
  3. Step 3: Cross multiply
    12,794.76x = 19,192.13 × 4,998.11
  4. Step 4: Simplify right side
    12,794.76x = 95,924,255.92
  5. Step 5: Solve for x
    x = 95,924,255.92/12,794.76
  6. Step 6: Final answer
    x = 7,497.15

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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.