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Finding the Fourth Proportional to 16,628.87, 22,947.86 and 9,176.87

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Solution

The fourth proportional to 16,628.87, 22,947.86 and 9,176.87 is: 12,664.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,628.87 : 22,947.86 = 9,176.87 : x
  2. Step 2: Convert to fraction form
    16,628.87/22,947.86 = 9,176.87/x
  3. Step 3: Cross multiply
    16,628.87x = 22,947.86 × 9,176.87
  4. Step 4: Simplify right side
    16,628.87x = 210,589,482.11
  5. Step 5: Solve for x
    x = 210,589,482.11/16,628.87
  6. Step 6: Final answer
    x = 12,664.09

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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.