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Finding the Fourth Proportional to 50,807.40, 76,211.10 and 50,461.80

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Solution

The fourth proportional to 50,807.40, 76,211.10 and 50,461.80 is: 75,692.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,807.40 : 76,211.10 = 50,461.80 : x
  2. Step 2: Convert to fraction form
    50,807.40/76,211.10 = 50,461.80/x
  3. Step 3: Cross multiply
    50,807.40x = 76,211.10 × 50,461.80
  4. Step 4: Simplify right side
    50,807.40x = 3,845,749,285.98
  5. Step 5: Solve for x
    x = 3,845,749,285.98/50,807.40
  6. Step 6: Final answer
    x = 75,692.70

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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.