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Finding the Fourth Proportional to 14,696.91, 20,280.69 and 8,324.15

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Solution

The fourth proportional to 14,696.91, 20,280.69 and 8,324.15 is: 11,486.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,696.91 : 20,280.69 = 8,324.15 : x
  2. Step 2: Convert to fraction form
    14,696.91/20,280.69 = 8,324.15/x
  3. Step 3: Cross multiply
    14,696.91x = 20,280.69 × 8,324.15
  4. Step 4: Simplify right side
    14,696.91x = 168,819,404.26
  5. Step 5: Solve for x
    x = 168,819,404.26/14,696.91
  6. Step 6: Final answer
    x = 11,486.73

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.