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Finding the Fourth Proportional to 51,891.52, 71,585.44 and 49,879.68

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Solution

The fourth proportional to 51,891.52, 71,585.44 and 49,879.68 is: 68,810.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,891.52 : 71,585.44 = 49,879.68 : x
  2. Step 2: Convert to fraction form
    51,891.52/71,585.44 = 49,879.68/x
  3. Step 3: Cross multiply
    51,891.52x = 71,585.44 × 49,879.68
  4. Step 4: Simplify right side
    51,891.52x = 3,570,658,839.86
  5. Step 5: Solve for x
    x = 3,570,658,839.86/51,891.52
  6. Step 6: Final answer
    x = 68,810.06

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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.