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Finding the Fourth Proportional to 11,474.60, 17,211.90 and 3,684.20

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Solution

The fourth proportional to 11,474.60, 17,211.90 and 3,684.20 is: 5,526.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,474.60 : 17,211.90 = 3,684.20 : x
  2. Step 2: Convert to fraction form
    11,474.60/17,211.90 = 3,684.20/x
  3. Step 3: Cross multiply
    11,474.60x = 17,211.90 × 3,684.20
  4. Step 4: Simplify right side
    11,474.60x = 63,412,081.98
  5. Step 5: Solve for x
    x = 63,412,081.98/11,474.60
  6. Step 6: Final answer
    x = 5,526.30

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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.