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Finding the Fourth Proportional to 50,980.56, 76,474.89 and 13,539.66

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Solution

The fourth proportional to 50,980.56, 76,474.89 and 13,539.66 is: 20,310.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,980.56 : 76,474.89 = 13,539.66 : x
  2. Step 2: Convert to fraction form
    50,980.56/76,474.89 = 13,539.66/x
  3. Step 3: Cross multiply
    50,980.56x = 76,474.89 × 13,539.66
  4. Step 4: Simplify right side
    50,980.56x = 1,035,444,009.14
  5. Step 5: Solve for x
    x = 1,035,444,009.14/50,980.56
  6. Step 6: Final answer
    x = 20,310.57

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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.