Home / 26,705.93-40,057.49-7,986.12

Finding the Fourth Proportional to 26,705.93, 40,057.49 and 7,986.12

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Solution

The fourth proportional to 26,705.93, 40,057.49 and 7,986.12 is: 11,978.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,705.93 : 40,057.49 = 7,986.12 : x
  2. Step 2: Convert to fraction form
    26,705.93/40,057.49 = 7,986.12/x
  3. Step 3: Cross multiply
    26,705.93x = 40,057.49 × 7,986.12
  4. Step 4: Simplify right side
    26,705.93x = 319,903,859.53
  5. Step 5: Solve for x
    x = 319,903,859.53/26,705.93
  6. Step 6: Final answer
    x = 11,978.76

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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.