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Finding the Fourth Proportional to 6,153.62, 9,231.78 and 1,994.05

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Solution

The fourth proportional to 6,153.62, 9,231.78 and 1,994.05 is: 2,991.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,153.62 : 9,231.78 = 1,994.05 : x
  2. Step 2: Convert to fraction form
    6,153.62/9,231.78 = 1,994.05/x
  3. Step 3: Cross multiply
    6,153.62x = 9,231.78 × 1,994.05
  4. Step 4: Simplify right side
    6,153.62x = 18,408,584.75
  5. Step 5: Solve for x
    x = 18,408,584.75/6,153.62
  6. Step 6: Final answer
    x = 2,991.50

Related Problems

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Half scale
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Double scale
Find fourth proportional to 6,154.62, 9,233.28 and 1,995.05
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.