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Finding the Fourth Proportional to 16,661.46, 22,991.50 and 9,586.50

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Solution

The fourth proportional to 16,661.46, 22,991.50 and 9,586.50 is: 13,228.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,661.46 : 22,991.50 = 9,586.50 : x
  2. Step 2: Convert to fraction form
    16,661.46/22,991.50 = 9,586.50/x
  3. Step 3: Cross multiply
    16,661.46x = 22,991.50 × 9,586.50
  4. Step 4: Simplify right side
    16,661.46x = 220,408,014.75
  5. Step 5: Solve for x
    x = 220,408,014.75/16,661.46
  6. Step 6: Final answer
    x = 13,228.61

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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.