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Finding the Fourth Proportional to 17,675.78, 26,521.54 and 8,799.98

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Solution

The fourth proportional to 17,675.78, 26,521.54 and 8,799.98 is: 13,203.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,675.78 : 26,521.54 = 8,799.98 : x
  2. Step 2: Convert to fraction form
    17,675.78/26,521.54 = 8,799.98/x
  3. Step 3: Cross multiply
    17,675.78x = 26,521.54 × 8,799.98
  4. Step 4: Simplify right side
    17,675.78x = 233,388,866.96
  5. Step 5: Solve for x
    x = 233,388,866.96/17,675.78
  6. Step 6: Final answer
    x = 13,203.88

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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.