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Finding the Fourth Proportional to 18,429.84, 25,434.07 and 10,366.02

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Solution

The fourth proportional to 18,429.84, 25,434.07 and 10,366.02 is: 14,305.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,429.84 : 25,434.07 = 10,366.02 : x
  2. Step 2: Convert to fraction form
    18,429.84/25,434.07 = 10,366.02/x
  3. Step 3: Cross multiply
    18,429.84x = 25,434.07 × 10,366.02
  4. Step 4: Simplify right side
    18,429.84x = 263,650,078.30
  5. Step 5: Solve for x
    x = 263,650,078.30/18,429.84
  6. Step 6: Final answer
    x = 14,305.61

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