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Finding the Fourth Proportional to 66,627.96, 91,904.31 and 50,677.44

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Solution

The fourth proportional to 66,627.96, 91,904.31 and 50,677.44 is: 69,902.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,627.96 : 91,904.31 = 50,677.44 : x
  2. Step 2: Convert to fraction form
    66,627.96/91,904.31 = 50,677.44/x
  3. Step 3: Cross multiply
    66,627.96x = 91,904.31 × 50,677.44
  4. Step 4: Simplify right side
    66,627.96x = 4,657,475,155.77
  5. Step 5: Solve for x
    x = 4,657,475,155.77/66,627.96
  6. Step 6: Final answer
    x = 69,902.71

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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.