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Finding the Fourth Proportional to 14,668.93, 20,243.07 and 7,954.54

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Solution

The fourth proportional to 14,668.93, 20,243.07 and 7,954.54 is: 10,977.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,668.93 : 20,243.07 = 7,954.54 : x
  2. Step 2: Convert to fraction form
    14,668.93/20,243.07 = 7,954.54/x
  3. Step 3: Cross multiply
    14,668.93x = 20,243.07 × 7,954.54
  4. Step 4: Simplify right side
    14,668.93x = 161,024,310.04
  5. Step 5: Solve for x
    x = 161,024,310.04/14,668.93
  6. Step 6: Final answer
    x = 10,977.24

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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.