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Finding the Fourth Proportional to 16,611.60, 24,922.76 and 9,947.06

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Solution

The fourth proportional to 16,611.60, 24,922.76 and 9,947.06 is: 14,923.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,611.60 : 24,922.76 = 9,947.06 : x
  2. Step 2: Convert to fraction form
    16,611.60/24,922.76 = 9,947.06/x
  3. Step 3: Cross multiply
    16,611.60x = 24,922.76 × 9,947.06
  4. Step 4: Simplify right side
    16,611.60x = 247,908,189.09
  5. Step 5: Solve for x
    x = 247,908,189.09/16,611.60
  6. Step 6: Final answer
    x = 14,923.80

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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.