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Finding the Fourth Proportional to 14,754.31, 20,360.44 and 8,039.81

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Solution

The fourth proportional to 14,754.31, 20,360.44 and 8,039.81 is: 11,094.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,754.31 : 20,360.44 = 8,039.81 : x
  2. Step 2: Convert to fraction form
    14,754.31/20,360.44 = 8,039.81/x
  3. Step 3: Cross multiply
    14,754.31x = 20,360.44 × 8,039.81
  4. Step 4: Simplify right side
    14,754.31x = 163,693,992.93
  5. Step 5: Solve for x
    x = 163,693,992.93/14,754.31
  6. Step 6: Final answer
    x = 11,094.65

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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.