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Finding the Fourth Proportional to 14,668.43, 20,242.18 and 8,294.92

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Solution

The fourth proportional to 14,668.43, 20,242.18 and 8,294.92 is: 11,446.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,668.43 : 20,242.18 = 8,294.92 : x
  2. Step 2: Convert to fraction form
    14,668.43/20,242.18 = 8,294.92/x
  3. Step 3: Cross multiply
    14,668.43x = 20,242.18 × 8,294.92
  4. Step 4: Simplify right side
    14,668.43x = 167,907,263.73
  5. Step 5: Solve for x
    x = 167,907,263.73/14,668.43
  6. Step 6: Final answer
    x = 11,446.85

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.