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Finding the Fourth Proportional to 56,611.78, 84,916.76 and 14,491.51

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Solution

The fourth proportional to 56,611.78, 84,916.76 and 14,491.51 is: 21,737.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,611.78 : 84,916.76 = 14,491.51 : x
  2. Step 2: Convert to fraction form
    56,611.78/84,916.76 = 14,491.51/x
  3. Step 3: Cross multiply
    56,611.78x = 84,916.76 × 14,491.51
  4. Step 4: Simplify right side
    56,611.78x = 1,230,571,791.96
  5. Step 5: Solve for x
    x = 1,230,571,791.96/56,611.78
  6. Step 6: Final answer
    x = 21,737.03

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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.