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Finding the Fourth Proportional to 51,996.87, 77,986.73 and 18,710.73

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Solution

The fourth proportional to 51,996.87, 77,986.73 and 18,710.73 is: 28,063.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,996.87 : 77,986.73 = 18,710.73 : x
  2. Step 2: Convert to fraction form
    51,996.87/77,986.73 = 18,710.73/x
  3. Step 3: Cross multiply
    51,996.87x = 77,986.73 × 18,710.73
  4. Step 4: Simplify right side
    51,996.87x = 1,459,188,695.39
  5. Step 5: Solve for x
    x = 1,459,188,695.39/51,996.87
  6. Step 6: Final answer
    x = 28,063.01

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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.