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Finding the Fourth Proportional to 18,254.94, 27,381.06 and 5,107.02

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Solution

The fourth proportional to 18,254.94, 27,381.06 and 5,107.02 is: 7,660.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,254.94 : 27,381.06 = 5,107.02 : x
  2. Step 2: Convert to fraction form
    18,254.94/27,381.06 = 5,107.02/x
  3. Step 3: Cross multiply
    18,254.94x = 27,381.06 × 5,107.02
  4. Step 4: Simplify right side
    18,254.94x = 139,835,621.04
  5. Step 5: Solve for x
    x = 139,835,621.04/18,254.94
  6. Step 6: Final answer
    x = 7,660.15

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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.