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Finding the Fourth Proportional to 18,545.83, 25,578.34 and 16,302.94

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Solution

The fourth proportional to 18,545.83, 25,578.34 and 16,302.94 is: 22,484.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,545.83 : 25,578.34 = 16,302.94 : x
  2. Step 2: Convert to fraction form
    18,545.83/25,578.34 = 16,302.94/x
  3. Step 3: Cross multiply
    18,545.83x = 25,578.34 × 16,302.94
  4. Step 4: Simplify right side
    18,545.83x = 417,002,142.32
  5. Step 5: Solve for x
    x = 417,002,142.32/18,545.83
  6. Step 6: Final answer
    x = 22,484.95

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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.