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Finding the Fourth Proportional to 14,446.92, 21,668.46 and 5,679.48

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Solution

The fourth proportional to 14,446.92, 21,668.46 and 5,679.48 is: 8,518.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,446.92 : 21,668.46 = 5,679.48 : x
  2. Step 2: Convert to fraction form
    14,446.92/21,668.46 = 5,679.48/x
  3. Step 3: Cross multiply
    14,446.92x = 21,668.46 × 5,679.48
  4. Step 4: Simplify right side
    14,446.92x = 123,065,585.20
  5. Step 5: Solve for x
    x = 123,065,585.20/14,446.92
  6. Step 6: Final answer
    x = 8,518.47

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1.5x scale

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.