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Finding the Fourth Proportional to 7,324.82, 10,986.35 and 1,914.83

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Solution

The fourth proportional to 7,324.82, 10,986.35 and 1,914.83 is: 2,872.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,324.82 : 10,986.35 = 1,914.83 : x
  2. Step 2: Convert to fraction form
    7,324.82/10,986.35 = 1,914.83/x
  3. Step 3: Cross multiply
    7,324.82x = 10,986.35 × 1,914.83
  4. Step 4: Simplify right side
    7,324.82x = 21,036,937.64
  5. Step 5: Solve for x
    x = 21,036,937.64/7,324.82
  6. Step 6: Final answer
    x = 2,872.01

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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.