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Finding the Fourth Proportional to 18,556.57, 25,593.19 and 16,313.68

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Solution

The fourth proportional to 18,556.57, 25,593.19 and 16,313.68 is: 22,499.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,556.57 : 25,593.19 = 16,313.68 : x
  2. Step 2: Convert to fraction form
    18,556.57/25,593.19 = 16,313.68/x
  3. Step 3: Cross multiply
    18,556.57x = 25,593.19 × 16,313.68
  4. Step 4: Simplify right side
    18,556.57x = 417,519,007.07
  5. Step 5: Solve for x
    x = 417,519,007.07/18,556.57
  6. Step 6: Final answer
    x = 22,499.80

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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.