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Finding the Fourth Proportional to 50,750.01, 76,146.90 and 21,173.67

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Solution

The fourth proportional to 50,750.01, 76,146.90 and 21,173.67 is: 31,769.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,750.01 : 76,146.90 = 21,173.67 : x
  2. Step 2: Convert to fraction form
    50,750.01/76,146.90 = 21,173.67/x
  3. Step 3: Cross multiply
    50,750.01x = 76,146.90 × 21,173.67
  4. Step 4: Simplify right side
    50,750.01x = 1,612,309,332.12
  5. Step 5: Solve for x
    x = 1,612,309,332.12/50,750.01
  6. Step 6: Final answer
    x = 31,769.64

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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.