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Finding the Fourth Proportional to 8,794.86, 13,192.29 and 8,211.66

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Solution

The fourth proportional to 8,794.86, 13,192.29 and 8,211.66 is: 12,317.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,794.86 : 13,192.29 = 8,211.66 : x
  2. Step 2: Convert to fraction form
    8,794.86/13,192.29 = 8,211.66/x
  3. Step 3: Cross multiply
    8,794.86x = 13,192.29 × 8,211.66
  4. Step 4: Simplify right side
    8,794.86x = 108,330,600.10
  5. Step 5: Solve for x
    x = 108,330,600.10/8,794.86
  6. Step 6: Final answer
    x = 12,317.49

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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.