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Finding the Fourth Proportional to 50,729.60, 70,883.20 and 50,729.60

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Solution

The fourth proportional to 50,729.60, 70,883.20 and 50,729.60 is: 70,883.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,729.60 : 70,883.20 = 50,729.60 : x
  2. Step 2: Convert to fraction form
    50,729.60/70,883.20 = 50,729.60/x
  3. Step 3: Cross multiply
    50,729.60x = 70,883.20 × 50,729.60
  4. Step 4: Simplify right side
    50,729.60x = 3,595,876,382.72
  5. Step 5: Solve for x
    x = 3,595,876,382.72/50,729.60
  6. Step 6: Final answer
    x = 70,883.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.