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Finding the Fourth Proportional to 35,355.92, 53,022.66 and 11,976.88

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Solution

The fourth proportional to 35,355.92, 53,022.66 and 11,976.88 is: 17,961.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,355.92 : 53,022.66 = 11,976.88 : x
  2. Step 2: Convert to fraction form
    35,355.92/53,022.66 = 11,976.88/x
  3. Step 3: Cross multiply
    35,355.92x = 53,022.66 × 11,976.88
  4. Step 4: Simplify right side
    35,355.92x = 635,046,036.10
  5. Step 5: Solve for x
    x = 635,046,036.10/35,355.92
  6. Step 6: Final answer
    x = 17,961.52

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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.