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Finding the Fourth Proportional to 11,105.58, 15,324.23 and 7,132.08

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Solution

The fourth proportional to 11,105.58, 15,324.23 and 7,132.08 is: 9,841.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,105.58 : 15,324.23 = 7,132.08 : x
  2. Step 2: Convert to fraction form
    11,105.58/15,324.23 = 7,132.08/x
  3. Step 3: Cross multiply
    11,105.58x = 15,324.23 × 7,132.08
  4. Step 4: Simplify right side
    11,105.58x = 109,293,522.02
  5. Step 5: Solve for x
    x = 109,293,522.02/11,105.58
  6. Step 6: Final answer
    x = 9,841.32

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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.