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Finding the Fourth Proportional to 13,706.46, 20,559.45 and 4,472.46

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Solution

The fourth proportional to 13,706.46, 20,559.45 and 4,472.46 is: 6,708.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,706.46 : 20,559.45 = 4,472.46 : x
  2. Step 2: Convert to fraction form
    13,706.46/20,559.45 = 4,472.46/x
  3. Step 3: Cross multiply
    13,706.46x = 20,559.45 × 4,472.46
  4. Step 4: Simplify right side
    13,706.46x = 91,951,317.75
  5. Step 5: Solve for x
    x = 91,951,317.75/13,706.46
  6. Step 6: Final answer
    x = 6,708.61

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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.