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Finding the Fourth Proportional to 17,754.33, 26,649.90 and 13,079.58

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Solution

The fourth proportional to 17,754.33, 26,649.90 and 13,079.58 is: 19,632.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,754.33 : 26,649.90 = 13,079.58 : x
  2. Step 2: Convert to fraction form
    17,754.33/26,649.90 = 13,079.58/x
  3. Step 3: Cross multiply
    17,754.33x = 26,649.90 × 13,079.58
  4. Step 4: Simplify right side
    17,754.33x = 348,569,499.04
  5. Step 5: Solve for x
    x = 348,569,499.04/17,754.33
  6. Step 6: Final answer
    x = 19,632.93

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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.