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Finding the Fourth Proportional to 14,612.01, 20,162.01 and 8,641.50

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Solution

The fourth proportional to 14,612.01, 20,162.01 and 8,641.50 is: 11,923.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,612.01 : 20,162.01 = 8,641.50 : x
  2. Step 2: Convert to fraction form
    14,612.01/20,162.01 = 8,641.50/x
  3. Step 3: Cross multiply
    14,612.01x = 20,162.01 × 8,641.50
  4. Step 4: Simplify right side
    14,612.01x = 174,230,079.62
  5. Step 5: Solve for x
    x = 174,230,079.62/14,612.01
  6. Step 6: Final answer
    x = 11,923.76

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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.