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Finding the Fourth Proportional to 14,974.92, 20,662.79 and 9,602.05

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Solution

The fourth proportional to 14,974.92, 20,662.79 and 9,602.05 is: 13,249.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,974.92 : 20,662.79 = 9,602.05 : x
  2. Step 2: Convert to fraction form
    14,974.92/20,662.79 = 9,602.05/x
  3. Step 3: Cross multiply
    14,974.92x = 20,662.79 × 9,602.05
  4. Step 4: Simplify right side
    14,974.92x = 198,405,142.72
  5. Step 5: Solve for x
    x = 198,405,142.72/14,974.92
  6. Step 6: Final answer
    x = 13,249.17

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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.