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Finding the Fourth Proportional to 44,876.22, 61,916.30 and 28,969.72

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Solution

The fourth proportional to 44,876.22, 61,916.30 and 28,969.72 is: 39,969.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,876.22 : 61,916.30 = 28,969.72 : x
  2. Step 2: Convert to fraction form
    44,876.22/61,916.30 = 28,969.72/x
  3. Step 3: Cross multiply
    44,876.22x = 61,916.30 × 28,969.72
  4. Step 4: Simplify right side
    44,876.22x = 1,793,697,874.44
  5. Step 5: Solve for x
    x = 1,793,697,874.44/44,876.22
  6. Step 6: Final answer
    x = 39,969.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.