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Finding the Fourth Proportional to 49,888.86, 68,843.86 and 28,375.71

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Solution

The fourth proportional to 49,888.86, 68,843.86 and 28,375.71 is: 39,156.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,888.86 : 68,843.86 = 28,375.71 : x
  2. Step 2: Convert to fraction form
    49,888.86/68,843.86 = 28,375.71/x
  3. Step 3: Cross multiply
    49,888.86x = 68,843.86 × 28,375.71
  4. Step 4: Simplify right side
    49,888.86x = 1,953,493,406.64
  5. Step 5: Solve for x
    x = 1,953,493,406.64/49,888.86
  6. Step 6: Final answer
    x = 39,156.91

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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.