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Finding the Fourth Proportional to 10,805.36, 14,911.38 and 5,837.36

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Solution

The fourth proportional to 10,805.36, 14,911.38 and 5,837.36 is: 8,055.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,805.36 : 14,911.38 = 5,837.36 : x
  2. Step 2: Convert to fraction form
    10,805.36/14,911.38 = 5,837.36/x
  3. Step 3: Cross multiply
    10,805.36x = 14,911.38 × 5,837.36
  4. Step 4: Simplify right side
    10,805.36x = 87,043,018.60
  5. Step 5: Solve for x
    x = 87,043,018.60/10,805.36
  6. Step 6: Final answer
    x = 8,055.54

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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.