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Finding the Fourth Proportional to 14,680, 22,020.20 and 5,446

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Solution

The fourth proportional to 14,680, 22,020.20 and 5,446 is: 8,169.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,680 : 22,020.20 = 5,446 : x
  2. Step 2: Convert to fraction form
    14,680/22,020.20 = 5,446/x
  3. Step 3: Cross multiply
    14,680x = 22,020.20 × 5,446
  4. Step 4: Simplify right side
    14,680x = 119,922,009.20
  5. Step 5: Solve for x
    x = 119,922,009.20/14,680
  6. Step 6: Final answer
    x = 8,169.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.