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Finding the Fourth Proportional to 18,499.76, 25,532.54 and 14,550.82

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Solution

The fourth proportional to 18,499.76, 25,532.54 and 14,550.82 is: 20,082.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,499.76 : 25,532.54 = 14,550.82 : x
  2. Step 2: Convert to fraction form
    18,499.76/25,532.54 = 14,550.82/x
  3. Step 3: Cross multiply
    18,499.76x = 25,532.54 × 14,550.82
  4. Step 4: Simplify right side
    18,499.76x = 371,519,393.68
  5. Step 5: Solve for x
    x = 371,519,393.68/18,499.76
  6. Step 6: Final answer
    x = 20,082.39

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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.