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Finding the Fourth Proportional to 12,039.93, 18,053.28 and 3,717.66

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Solution

The fourth proportional to 12,039.93, 18,053.28 and 3,717.66 is: 5,574.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,039.93 : 18,053.28 = 3,717.66 : x
  2. Step 2: Convert to fraction form
    12,039.93/18,053.28 = 3,717.66/x
  3. Step 3: Cross multiply
    12,039.93x = 18,053.28 × 3,717.66
  4. Step 4: Simplify right side
    12,039.93x = 67,115,956.92
  5. Step 5: Solve for x
    x = 67,115,956.92/12,039.93
  6. Step 6: Final answer
    x = 5,574.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.