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Finding the Fourth Proportional to 48,611.10, 72,916.65 and 36,801.30

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Solution

The fourth proportional to 48,611.10, 72,916.65 and 36,801.30 is: 55,201.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,611.10 : 72,916.65 = 36,801.30 : x
  2. Step 2: Convert to fraction form
    48,611.10/72,916.65 = 36,801.30/x
  3. Step 3: Cross multiply
    48,611.10x = 72,916.65 × 36,801.30
  4. Step 4: Simplify right side
    48,611.10x = 2,683,427,511.65
  5. Step 5: Solve for x
    x = 2,683,427,511.65/48,611.10
  6. Step 6: Final answer
    x = 55,201.95

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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.