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Finding the Fourth Proportional to 43,998.60, 65,997.90 and 39,544.20

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Solution

The fourth proportional to 43,998.60, 65,997.90 and 39,544.20 is: 59,316.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,998.60 : 65,997.90 = 39,544.20 : x
  2. Step 2: Convert to fraction form
    43,998.60/65,997.90 = 39,544.20/x
  3. Step 3: Cross multiply
    43,998.60x = 65,997.90 × 39,544.20
  4. Step 4: Simplify right side
    43,998.60x = 2,609,834,157.18
  5. Step 5: Solve for x
    x = 2,609,834,157.18/43,998.60
  6. Step 6: Final answer
    x = 59,316.30

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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.