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Finding the Fourth Proportional to 69,619, 104,428.34 and 25,245.66

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Solution

The fourth proportional to 69,619, 104,428.34 and 25,245.66 is: 37,868.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,619 : 104,428.34 = 25,245.66 : x
  2. Step 2: Convert to fraction form
    69,619/104,428.34 = 25,245.66/x
  3. Step 3: Cross multiply
    69,619x = 104,428.34 × 25,245.66
  4. Step 4: Simplify right side
    69,619x = 2,636,362,366.00
  5. Step 5: Solve for x
    x = 2,636,362,366.00/69,619
  6. Step 6: Final answer
    x = 37,868.43

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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.