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Finding the Fourth Proportional to 6,710.85, 9,240.89 and 5,529.87

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Solution

The fourth proportional to 6,710.85, 9,240.89 and 5,529.87 is: 7,614.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,710.85 : 9,240.89 = 5,529.87 : x
  2. Step 2: Convert to fraction form
    6,710.85/9,240.89 = 5,529.87/x
  3. Step 3: Cross multiply
    6,710.85x = 9,240.89 × 5,529.87
  4. Step 4: Simplify right side
    6,710.85x = 51,100,892.73
  5. Step 5: Solve for x
    x = 51,100,892.73/6,710.85
  6. Step 6: Final answer
    x = 7,614.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.