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Finding the Fourth Proportional to 14,662.63, 20,229.71 and 8,994.66

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Solution

The fourth proportional to 14,662.63, 20,229.71 and 8,994.66 is: 12,409.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,662.63 : 20,229.71 = 8,994.66 : x
  2. Step 2: Convert to fraction form
    14,662.63/20,229.71 = 8,994.66/x
  3. Step 3: Cross multiply
    14,662.63x = 20,229.71 × 8,994.66
  4. Step 4: Simplify right side
    14,662.63x = 181,959,363.35
  5. Step 5: Solve for x
    x = 181,959,363.35/14,662.63
  6. Step 6: Final answer
    x = 12,409.74

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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.