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Finding the Fourth Proportional to 49,862.60, 74,611.65 and 36,740.60

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Solution

The fourth proportional to 49,862.60, 74,611.65 and 36,740.60 is: 54,976.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,862.60 : 74,611.65 = 36,740.60 : x
  2. Step 2: Convert to fraction form
    49,862.60/74,611.65 = 36,740.60/x
  3. Step 3: Cross multiply
    49,862.60x = 74,611.65 × 36,740.60
  4. Step 4: Simplify right side
    49,862.60x = 2,741,276,787.99
  5. Step 5: Solve for x
    x = 2,741,276,787.99/49,862.60
  6. Step 6: Final answer
    x = 54,976.61

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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.