Home / 49,860.13-68,805.78-28,640.77

Finding the Fourth Proportional to 49,860.13, 68,805.78 and 28,640.77

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Solution

The fourth proportional to 49,860.13, 68,805.78 and 28,640.77 is: 39,523.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,860.13 : 68,805.78 = 28,640.77 : x
  2. Step 2: Convert to fraction form
    49,860.13/68,805.78 = 28,640.77/x
  3. Step 3: Cross multiply
    49,860.13x = 68,805.78 × 28,640.77
  4. Step 4: Simplify right side
    49,860.13x = 1,970,650,519.65
  5. Step 5: Solve for x
    x = 1,970,650,519.65/49,860.13
  6. Step 6: Final answer
    x = 39,523.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.