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Finding the Fourth Proportional to 50,761.65, 76,144.98 and 13,321.83

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Solution

The fourth proportional to 50,761.65, 76,144.98 and 13,321.83 is: 19,983.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,761.65 : 76,144.98 = 13,321.83 : x
  2. Step 2: Convert to fraction form
    50,761.65/76,144.98 = 13,321.83/x
  3. Step 3: Cross multiply
    50,761.65x = 76,144.98 × 13,321.83
  4. Step 4: Simplify right side
    50,761.65x = 1,014,390,478.91
  5. Step 5: Solve for x
    x = 1,014,390,478.91/50,761.65
  6. Step 6: Final answer
    x = 19,983.40

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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.