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Finding the Fourth Proportional to 65,996.60, 98,994.78 and 18,611.60

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Solution

The fourth proportional to 65,996.60, 98,994.78 and 18,611.60 is: 27,917.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,996.60 : 98,994.78 = 18,611.60 : x
  2. Step 2: Convert to fraction form
    65,996.60/98,994.78 = 18,611.60/x
  3. Step 3: Cross multiply
    65,996.60x = 98,994.78 × 18,611.60
  4. Step 4: Simplify right side
    65,996.60x = 1,842,451,083.24
  5. Step 5: Solve for x
    x = 1,842,451,083.24/65,996.60
  6. Step 6: Final answer
    x = 27,917.36

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1.5x scale

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.