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Finding the Fourth Proportional to 13,950.99, 21,008.99 and 10,082.43

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Solution

The fourth proportional to 13,950.99, 21,008.99 and 10,082.43 is: 15,183.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,950.99 : 21,008.99 = 10,082.43 : x
  2. Step 2: Convert to fraction form
    13,950.99/21,008.99 = 10,082.43/x
  3. Step 3: Cross multiply
    13,950.99x = 21,008.99 × 10,082.43
  4. Step 4: Simplify right side
    13,950.99x = 211,821,696.25
  5. Step 5: Solve for x
    x = 211,821,696.25/13,950.99
  6. Step 6: Final answer
    x = 15,183.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.