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Finding the Fourth Proportional to 41,124.64, 61,677.72 and 18,916.68

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Solution

The fourth proportional to 41,124.64, 61,677.72 and 18,916.68 is: 28,370.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,124.64 : 61,677.72 = 18,916.68 : x
  2. Step 2: Convert to fraction form
    41,124.64/61,677.72 = 18,916.68/x
  3. Step 3: Cross multiply
    41,124.64x = 61,677.72 × 18,916.68
  4. Step 4: Simplify right side
    41,124.64x = 1,166,737,692.37
  5. Step 5: Solve for x
    x = 1,166,737,692.37/41,124.64
  6. Step 6: Final answer
    x = 28,370.77

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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.