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Finding the Fourth Proportional to 8,136.86, 12,134.00 and 8,062.94

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Solution

The fourth proportional to 8,136.86, 12,134.00 and 8,062.94 is: 12,023.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,136.86 : 12,134.00 = 8,062.94 : x
  2. Step 2: Convert to fraction form
    8,136.86/12,134.00 = 8,062.94/x
  3. Step 3: Cross multiply
    8,136.86x = 12,134.00 × 8,062.94
  4. Step 4: Simplify right side
    8,136.86x = 97,835,764.45
  5. Step 5: Solve for x
    x = 97,835,764.45/8,136.86
  6. Step 6: Final answer
    x = 12,023.78

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.