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Finding the Fourth Proportional to 34,891.06, 48,150.94 and 19,989.94

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Solution

The fourth proportional to 34,891.06, 48,150.94 and 19,989.94 is: 27,586.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,891.06 : 48,150.94 = 19,989.94 : x
  2. Step 2: Convert to fraction form
    34,891.06/48,150.94 = 19,989.94/x
  3. Step 3: Cross multiply
    34,891.06x = 48,150.94 × 19,989.94
  4. Step 4: Simplify right side
    34,891.06x = 962,534,401.54
  5. Step 5: Solve for x
    x = 962,534,401.54/34,891.06
  6. Step 6: Final answer
    x = 27,586.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.