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Finding the Fourth Proportional to 18,587.52, 27,872.64 and 10,798.56

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Solution

The fourth proportional to 18,587.52, 27,872.64 and 10,798.56 is: 16,192.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,587.52 : 27,872.64 = 10,798.56 : x
  2. Step 2: Convert to fraction form
    18,587.52/27,872.64 = 10,798.56/x
  3. Step 3: Cross multiply
    18,587.52x = 27,872.64 × 10,798.56
  4. Step 4: Simplify right side
    18,587.52x = 300,984,375.40
  5. Step 5: Solve for x
    x = 300,984,375.40/18,587.52
  6. Step 6: Final answer
    x = 16,192.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.