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Finding the Fourth Proportional to 7,493.82, 11,218.59 and 7,173.06

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Solution

The fourth proportional to 7,493.82, 11,218.59 and 7,173.06 is: 10,738.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,493.82 : 11,218.59 = 7,173.06 : x
  2. Step 2: Convert to fraction form
    7,493.82/11,218.59 = 7,173.06/x
  3. Step 3: Cross multiply
    7,493.82x = 11,218.59 × 7,173.06
  4. Step 4: Simplify right side
    7,493.82x = 80,471,619.19
  5. Step 5: Solve for x
    x = 80,471,619.19/7,493.82
  6. Step 6: Final answer
    x = 10,738.40

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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.