Home / 43,605.07-65,414.22-18,645.19

Finding the Fourth Proportional to 43,605.07, 65,414.22 and 18,645.19

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Solution

The fourth proportional to 43,605.07, 65,414.22 and 18,645.19 is: 27,970.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,605.07 : 65,414.22 = 18,645.19 : x
  2. Step 2: Convert to fraction form
    43,605.07/65,414.22 = 18,645.19/x
  3. Step 3: Cross multiply
    43,605.07x = 65,414.22 × 18,645.19
  4. Step 4: Simplify right side
    43,605.07x = 1,219,660,327.15
  5. Step 5: Solve for x
    x = 1,219,660,327.15/43,605.07
  6. Step 6: Final answer
    x = 27,970.61

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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.