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Finding the Fourth Proportional to 11,377.22, 17,076.90 and 8,699.90

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Solution

The fourth proportional to 11,377.22, 17,076.90 and 8,699.90 is: 13,058.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,377.22 : 17,076.90 = 8,699.90 : x
  2. Step 2: Convert to fraction form
    11,377.22/17,076.90 = 8,699.90/x
  3. Step 3: Cross multiply
    11,377.22x = 17,076.90 × 8,699.90
  4. Step 4: Simplify right side
    11,377.22x = 148,567,322.31
  5. Step 5: Solve for x
    x = 148,567,322.31/11,377.22
  6. Step 6: Final answer
    x = 13,058.31

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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.