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Finding the Fourth Proportional to 65,981.60, 98,907.60 and 32,706.80

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Solution

The fourth proportional to 65,981.60, 98,907.60 and 32,706.80 is: 49,028.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,981.60 : 98,907.60 = 32,706.80 : x
  2. Step 2: Convert to fraction form
    65,981.60/98,907.60 = 32,706.80/x
  3. Step 3: Cross multiply
    65,981.60x = 98,907.60 × 32,706.80
  4. Step 4: Simplify right side
    65,981.60x = 3,234,951,091.68
  5. Step 5: Solve for x
    x = 3,234,951,091.68/65,981.60
  6. Step 6: Final answer
    x = 49,028.08

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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.