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Finding the Fourth Proportional to 44,611.22, 66,916.88 and 13,446.47

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Solution

The fourth proportional to 44,611.22, 66,916.88 and 13,446.47 is: 20,169.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,611.22 : 66,916.88 = 13,446.47 : x
  2. Step 2: Convert to fraction form
    44,611.22/66,916.88 = 13,446.47/x
  3. Step 3: Cross multiply
    44,611.22x = 66,916.88 × 13,446.47
  4. Step 4: Simplify right side
    44,611.22x = 899,795,417.60
  5. Step 5: Solve for x
    x = 899,795,417.60/44,611.22
  6. Step 6: Final answer
    x = 20,169.71

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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.