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Finding the Fourth Proportional to 51,863.80, 77,795.70 and 50,999.80

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Solution

The fourth proportional to 51,863.80, 77,795.70 and 50,999.80 is: 76,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,863.80 : 77,795.70 = 50,999.80 : x
  2. Step 2: Convert to fraction form
    51,863.80/77,795.70 = 50,999.80/x
  3. Step 3: Cross multiply
    51,863.80x = 77,795.70 × 50,999.80
  4. Step 4: Simplify right side
    51,863.80x = 3,967,565,140.86
  5. Step 5: Solve for x
    x = 3,967,565,140.86/51,863.80
  6. Step 6: Final answer
    x = 76,499.70

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Similar ratio
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1.5x scale

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.