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Finding the Fourth Proportional to 11,260.98, 16,891.20 and 5,019.42

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Solution

The fourth proportional to 11,260.98, 16,891.20 and 5,019.42 is: 7,529.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,260.98 : 16,891.20 = 5,019.42 : x
  2. Step 2: Convert to fraction form
    11,260.98/16,891.20 = 5,019.42/x
  3. Step 3: Cross multiply
    11,260.98x = 16,891.20 × 5,019.42
  4. Step 4: Simplify right side
    11,260.98x = 84,784,027.10
  5. Step 5: Solve for x
    x = 84,784,027.10/11,260.98
  6. Step 6: Final answer
    x = 7,529.01

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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.