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Finding the Fourth Proportional to 24,424.89, 36,639.99 and 7,781.01

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Solution

The fourth proportional to 24,424.89, 36,639.99 and 7,781.01 is: 11,672.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,424.89 : 36,639.99 = 7,781.01 : x
  2. Step 2: Convert to fraction form
    24,424.89/36,639.99 = 7,781.01/x
  3. Step 3: Cross multiply
    24,424.89x = 36,639.99 × 7,781.01
  4. Step 4: Simplify right side
    24,424.89x = 285,096,128.59
  5. Step 5: Solve for x
    x = 285,096,128.59/24,424.89
  6. Step 6: Final answer
    x = 11,672.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.