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Finding the Fourth Proportional to 43,647.58, 65,475.14 and 12,057.63

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Solution

The fourth proportional to 43,647.58, 65,475.14 and 12,057.63 is: 18,087.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,647.58 : 65,475.14 = 12,057.63 : x
  2. Step 2: Convert to fraction form
    43,647.58/65,475.14 = 12,057.63/x
  3. Step 3: Cross multiply
    43,647.58x = 65,475.14 × 12,057.63
  4. Step 4: Simplify right side
    43,647.58x = 789,475,012.32
  5. Step 5: Solve for x
    x = 789,475,012.32/43,647.58
  6. Step 6: Final answer
    x = 18,087.49

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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.