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Finding the Fourth Proportional to 18,510.21, 25,543.85 and 10,552.59

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Solution

The fourth proportional to 18,510.21, 25,543.85 and 10,552.59 is: 14,562.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,510.21 : 25,543.85 = 10,552.59 : x
  2. Step 2: Convert to fraction form
    18,510.21/25,543.85 = 10,552.59/x
  3. Step 3: Cross multiply
    18,510.21x = 25,543.85 × 10,552.59
  4. Step 4: Simplify right side
    18,510.21x = 269,553,723.31
  5. Step 5: Solve for x
    x = 269,553,723.31/18,510.21
  6. Step 6: Final answer
    x = 14,562.43

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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.