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Finding the Fourth Proportional to 14,974.92, 20,664.46 and 8,260.60

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Solution

The fourth proportional to 14,974.92, 20,664.46 and 8,260.60 is: 11,399.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,974.92 : 20,664.46 = 8,260.60 : x
  2. Step 2: Convert to fraction form
    14,974.92/20,664.46 = 8,260.60/x
  3. Step 3: Cross multiply
    14,974.92x = 20,664.46 × 8,260.60
  4. Step 4: Simplify right side
    14,974.92x = 170,700,838.28
  5. Step 5: Solve for x
    x = 170,700,838.28/14,974.92
  6. Step 6: Final answer
    x = 11,399.12

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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.