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Finding the Fourth Proportional to 49,874.88, 68,852.76 and 38,518.86

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Solution

The fourth proportional to 49,874.88, 68,852.76 and 38,518.86 is: 53,175.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,874.88 : 68,852.76 = 38,518.86 : x
  2. Step 2: Convert to fraction form
    49,874.88/68,852.76 = 38,518.86/x
  3. Step 3: Cross multiply
    49,874.88x = 68,852.76 × 38,518.86
  4. Step 4: Simplify right side
    49,874.88x = 2,652,129,823.05
  5. Step 5: Solve for x
    x = 2,652,129,823.05/49,874.88
  6. Step 6: Final answer
    x = 53,175.66

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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.