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Finding the Fourth Proportional to 6,679.80, 10,019.76 and 1,749.48

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Solution

The fourth proportional to 6,679.80, 10,019.76 and 1,749.48 is: 2,624.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.80 : 10,019.76 = 1,749.48 : x
  2. Step 2: Convert to fraction form
    6,679.80/10,019.76 = 1,749.48/x
  3. Step 3: Cross multiply
    6,679.80x = 10,019.76 × 1,749.48
  4. Step 4: Simplify right side
    6,679.80x = 17,529,369.72
  5. Step 5: Solve for x
    x = 17,529,369.72/6,679.80
  6. Step 6: Final answer
    x = 2,624.24

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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.