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Finding the Fourth Proportional to 17,311.56, 25,981.44 and 8,994.12

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Solution

The fourth proportional to 17,311.56, 25,981.44 and 8,994.12 is: 13,498.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,311.56 : 25,981.44 = 8,994.12 : x
  2. Step 2: Convert to fraction form
    17,311.56/25,981.44 = 8,994.12/x
  3. Step 3: Cross multiply
    17,311.56x = 25,981.44 × 8,994.12
  4. Step 4: Simplify right side
    17,311.56x = 233,680,189.13
  5. Step 5: Solve for x
    x = 233,680,189.13/17,311.56
  6. Step 6: Final answer
    x = 13,498.51

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