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Finding the Fourth Proportional to 64,465.62, 88,961.15 and 35,783.61

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Solution

The fourth proportional to 64,465.62, 88,961.15 and 35,783.61 is: 49,380.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,465.62 : 88,961.15 = 35,783.61 : x
  2. Step 2: Convert to fraction form
    64,465.62/88,961.15 = 35,783.61/x
  3. Step 3: Cross multiply
    64,465.62x = 88,961.15 × 35,783.61
  4. Step 4: Simplify right side
    64,465.62x = 3,183,350,917.83
  5. Step 5: Solve for x
    x = 3,183,350,917.83/64,465.62
  6. Step 6: Final answer
    x = 49,380.60

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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.