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Finding the Fourth Proportional to 16,928.87, 23,362.29 and 9,375.86

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Solution

The fourth proportional to 16,928.87, 23,362.29 and 9,375.86 is: 12,938.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,928.87 : 23,362.29 = 9,375.86 : x
  2. Step 2: Convert to fraction form
    16,928.87/23,362.29 = 9,375.86/x
  3. Step 3: Cross multiply
    16,928.87x = 23,362.29 × 9,375.86
  4. Step 4: Simplify right side
    16,928.87x = 219,041,618.73
  5. Step 5: Solve for x
    x = 219,041,618.73/16,928.87
  6. Step 6: Final answer
    x = 12,938.94

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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.