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Finding the Fourth Proportional to 51,040.73, 76,560.84 and 13,089.84

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Solution

The fourth proportional to 51,040.73, 76,560.84 and 13,089.84 is: 19,634.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,040.73 : 76,560.84 = 13,089.84 : x
  2. Step 2: Convert to fraction form
    51,040.73/76,560.84 = 13,089.84/x
  3. Step 3: Cross multiply
    51,040.73x = 76,560.84 × 13,089.84
  4. Step 4: Simplify right side
    51,040.73x = 1,002,169,172.55
  5. Step 5: Solve for x
    x = 1,002,169,172.55/51,040.73
  6. Step 6: Final answer
    x = 19,634.69

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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.