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Finding the Fourth Proportional to 17,691.49, 26,547.49 and 8,927.09

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Solution

The fourth proportional to 17,691.49, 26,547.49 and 8,927.09 is: 13,395.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,691.49 : 26,547.49 = 8,927.09 : x
  2. Step 2: Convert to fraction form
    17,691.49/26,547.49 = 8,927.09/x
  3. Step 3: Cross multiply
    17,691.49x = 26,547.49 × 8,927.09
  4. Step 4: Simplify right side
    17,691.49x = 236,991,832.50
  5. Step 5: Solve for x
    x = 236,991,832.50/17,691.49
  6. Step 6: Final answer
    x = 13,395.81

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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.