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Finding the Fourth Proportional to 51,035.40, 76,401.90 and 37,945.80

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Solution

The fourth proportional to 51,035.40, 76,401.90 and 37,945.80 is: 56,806.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,035.40 : 76,401.90 = 37,945.80 : x
  2. Step 2: Convert to fraction form
    51,035.40/76,401.90 = 37,945.80/x
  3. Step 3: Cross multiply
    51,035.40x = 76,401.90 × 37,945.80
  4. Step 4: Simplify right side
    51,035.40x = 2,899,131,217.02
  5. Step 5: Solve for x
    x = 2,899,131,217.02/51,035.40
  6. Step 6: Final answer
    x = 56,806.28

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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.