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Finding the Fourth Proportional to 6,572.70, 9,855.18 and 2,188.98

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Solution

The fourth proportional to 6,572.70, 9,855.18 and 2,188.98 is: 3,282.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,572.70 : 9,855.18 = 2,188.98 : x
  2. Step 2: Convert to fraction form
    6,572.70/9,855.18 = 2,188.98/x
  3. Step 3: Cross multiply
    6,572.70x = 9,855.18 × 2,188.98
  4. Step 4: Simplify right side
    6,572.70x = 21,572,791.92
  5. Step 5: Solve for x
    x = 21,572,791.92/6,572.70
  6. Step 6: Final answer
    x = 3,282.18

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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.