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Finding the Fourth Proportional to 18,608.96, 25,679.76 and 10,224.92

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Solution

The fourth proportional to 18,608.96, 25,679.76 and 10,224.92 is: 14,110.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,608.96 : 25,679.76 = 10,224.92 : x
  2. Step 2: Convert to fraction form
    18,608.96/25,679.76 = 10,224.92/x
  3. Step 3: Cross multiply
    18,608.96x = 25,679.76 × 10,224.92
  4. Step 4: Simplify right side
    18,608.96x = 262,573,491.62
  5. Step 5: Solve for x
    x = 262,573,491.62/18,608.96
  6. Step 6: Final answer
    x = 14,110.06

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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.