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Finding the Fourth Proportional to 18,265.84, 25,183.91 and 14,905.24

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Solution

The fourth proportional to 18,265.84, 25,183.91 and 14,905.24 is: 20,550.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,265.84 : 25,183.91 = 14,905.24 : x
  2. Step 2: Convert to fraction form
    18,265.84/25,183.91 = 14,905.24/x
  3. Step 3: Cross multiply
    18,265.84x = 25,183.91 × 14,905.24
  4. Step 4: Simplify right side
    18,265.84x = 375,372,222.69
  5. Step 5: Solve for x
    x = 375,372,222.69/18,265.84
  6. Step 6: Final answer
    x = 20,550.50

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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.