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Finding the Fourth Proportional to 14,504.75, 20,016.59 and 8,217.13

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Solution

The fourth proportional to 14,504.75, 20,016.59 and 8,217.13 is: 11,339.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,504.75 : 20,016.59 = 8,217.13 : x
  2. Step 2: Convert to fraction form
    14,504.75/20,016.59 = 8,217.13/x
  3. Step 3: Cross multiply
    14,504.75x = 20,016.59 × 8,217.13
  4. Step 4: Simplify right side
    14,504.75x = 164,478,892.69
  5. Step 5: Solve for x
    x = 164,478,892.69/14,504.75
  6. Step 6: Final answer
    x = 11,339.66

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Half scale
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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.