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Finding the Fourth Proportional to 24,267.90, 36,405.42 and 12,428.37

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Solution

The fourth proportional to 24,267.90, 36,405.42 and 12,428.37 is: 18,644.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,267.90 : 36,405.42 = 12,428.37 : x
  2. Step 2: Convert to fraction form
    24,267.90/36,405.42 = 12,428.37/x
  3. Step 3: Cross multiply
    24,267.90x = 36,405.42 × 12,428.37
  4. Step 4: Simplify right side
    24,267.90x = 452,460,029.77
  5. Step 5: Solve for x
    x = 452,460,029.77/24,267.90
  6. Step 6: Final answer
    x = 18,644.38

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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.