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Finding the Fourth Proportional to 35,610.72, 53,398.02 and 11,909.82

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Solution

The fourth proportional to 35,610.72, 53,398.02 and 11,909.82 is: 17,858.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,610.72 : 53,398.02 = 11,909.82 : x
  2. Step 2: Convert to fraction form
    35,610.72/53,398.02 = 11,909.82/x
  3. Step 3: Cross multiply
    35,610.72x = 53,398.02 × 11,909.82
  4. Step 4: Simplify right side
    35,610.72x = 635,960,806.56
  5. Step 5: Solve for x
    x = 635,960,806.56/35,610.72
  6. Step 6: Final answer
    x = 17,858.69

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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.