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Finding the Fourth Proportional to 14,874.82, 20,527.69 and 8,160.86

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Solution

The fourth proportional to 14,874.82, 20,527.69 and 8,160.86 is: 11,262.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,874.82 : 20,527.69 = 8,160.86 : x
  2. Step 2: Convert to fraction form
    14,874.82/20,527.69 = 8,160.86/x
  3. Step 3: Cross multiply
    14,874.82x = 20,527.69 × 8,160.86
  4. Step 4: Simplify right side
    14,874.82x = 167,523,604.21
  5. Step 5: Solve for x
    x = 167,523,604.21/14,874.82
  6. Step 6: Final answer
    x = 11,262.23

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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.