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Finding the Fourth Proportional to 11,398.88, 17,053.24 and 8,633.52

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Solution

The fourth proportional to 11,398.88, 17,053.24 and 8,633.52 is: 12,916.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,398.88 : 17,053.24 = 8,633.52 : x
  2. Step 2: Convert to fraction form
    11,398.88/17,053.24 = 8,633.52/x
  3. Step 3: Cross multiply
    11,398.88x = 17,053.24 × 8,633.52
  4. Step 4: Simplify right side
    11,398.88x = 147,229,488.60
  5. Step 5: Solve for x
    x = 147,229,488.60/11,398.88
  6. Step 6: Final answer
    x = 12,916.14

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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.