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Finding the Fourth Proportional to 16,923.60, 23,356.08 and 9,371.70

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Solution

The fourth proportional to 16,923.60, 23,356.08 and 9,371.70 is: 12,933.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,923.60 : 23,356.08 = 9,371.70 : x
  2. Step 2: Convert to fraction form
    16,923.60/23,356.08 = 9,371.70/x
  3. Step 3: Cross multiply
    16,923.60x = 23,356.08 × 9,371.70
  4. Step 4: Simplify right side
    16,923.60x = 218,886,174.94
  5. Step 5: Solve for x
    x = 218,886,174.94/16,923.60
  6. Step 6: Final answer
    x = 12,933.78

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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.