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Finding the Fourth Proportional to 19,310.68, 26,649.78 and 10,927

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Solution

The fourth proportional to 19,310.68, 26,649.78 and 10,927 is: 15,079.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,310.68 : 26,649.78 = 10,927 : x
  2. Step 2: Convert to fraction form
    19,310.68/26,649.78 = 10,927/x
  3. Step 3: Cross multiply
    19,310.68x = 26,649.78 × 10,927
  4. Step 4: Simplify right side
    19,310.68x = 291,202,146.06
  5. Step 5: Solve for x
    x = 291,202,146.06/19,310.68
  6. Step 6: Final answer
    x = 15,079.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.