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Finding the Fourth Proportional to 17,857.63, 26,788.22 and 6,615.98

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Solution

The fourth proportional to 17,857.63, 26,788.22 and 6,615.98 is: 9,924.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,857.63 : 26,788.22 = 6,615.98 : x
  2. Step 2: Convert to fraction form
    17,857.63/26,788.22 = 6,615.98/x
  3. Step 3: Cross multiply
    17,857.63x = 26,788.22 × 6,615.98
  4. Step 4: Simplify right side
    17,857.63x = 177,230,327.76
  5. Step 5: Solve for x
    x = 177,230,327.76/17,857.63
  6. Step 6: Final answer
    x = 9,924.63

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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.