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Finding the Fourth Proportional to 11,898.72, 17,844.39 and 9,553.20

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Solution

The fourth proportional to 11,898.72, 17,844.39 and 9,553.20 is: 14,326.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,898.72 : 17,844.39 = 9,553.20 : x
  2. Step 2: Convert to fraction form
    11,898.72/17,844.39 = 9,553.20/x
  3. Step 3: Cross multiply
    11,898.72x = 17,844.39 × 9,553.20
  4. Step 4: Simplify right side
    11,898.72x = 170,471,026.55
  5. Step 5: Solve for x
    x = 170,471,026.55/11,898.72
  6. Step 6: Final answer
    x = 14,326.84

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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.