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Finding the Fourth Proportional to 17,953.65, 26,932.34 and 6,869.61

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Solution

The fourth proportional to 17,953.65, 26,932.34 and 6,869.61 is: 10,305.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,953.65 : 26,932.34 = 6,869.61 : x
  2. Step 2: Convert to fraction form
    17,953.65/26,932.34 = 6,869.61/x
  3. Step 3: Cross multiply
    17,953.65x = 26,932.34 × 6,869.61
  4. Step 4: Simplify right side
    17,953.65x = 185,014,537.53
  5. Step 5: Solve for x
    x = 185,014,537.53/17,953.65
  6. Step 6: Final answer
    x = 10,305.12

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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.