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Finding the Fourth Proportional to 17,722.35, 26,583.80 and 8,957.61

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Solution

The fourth proportional to 17,722.35, 26,583.80 and 8,957.61 is: 13,436.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,722.35 : 26,583.80 = 8,957.61 : x
  2. Step 2: Convert to fraction form
    17,722.35/26,583.80 = 8,957.61/x
  3. Step 3: Cross multiply
    17,722.35x = 26,583.80 × 8,957.61
  4. Step 4: Simplify right side
    17,722.35x = 238,127,267.93
  5. Step 5: Solve for x
    x = 238,127,267.93/17,722.35
  6. Step 6: Final answer
    x = 13,436.55

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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.