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Finding the Fourth Proportional to 17,266.88, 25,852.80 and 8,929.28

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Solution

The fourth proportional to 17,266.88, 25,852.80 and 8,929.28 is: 13,369.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,266.88 : 25,852.80 = 8,929.28 : x
  2. Step 2: Convert to fraction form
    17,266.88/25,852.80 = 8,929.28/x
  3. Step 3: Cross multiply
    17,266.88x = 25,852.80 × 8,929.28
  4. Step 4: Simplify right side
    17,266.88x = 230,846,889.98
  5. Step 5: Solve for x
    x = 230,846,889.98/17,266.88
  6. Step 6: Final answer
    x = 13,369.35

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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.