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Finding the Fourth Proportional to 18,122.56, 24,996.49 and 17,512.94

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Solution

The fourth proportional to 18,122.56, 24,996.49 and 17,512.94 is: 24,155.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.56 : 24,996.49 = 17,512.94 : x
  2. Step 2: Convert to fraction form
    18,122.56/24,996.49 = 17,512.94/x
  3. Step 3: Cross multiply
    18,122.56x = 24,996.49 × 17,512.94
  4. Step 4: Simplify right side
    18,122.56x = 437,762,048.29
  5. Step 5: Solve for x
    x = 437,762,048.29/18,122.56
  6. Step 6: Final answer
    x = 24,155.64

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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.