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Finding the Fourth Proportional to 69,980.43, 104,934.99 and 25,595.67

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Solution

The fourth proportional to 69,980.43, 104,934.99 and 25,595.67 is: 38,380.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,980.43 : 104,934.99 = 25,595.67 : x
  2. Step 2: Convert to fraction form
    69,980.43/104,934.99 = 25,595.67/x
  3. Step 3: Cross multiply
    69,980.43x = 104,934.99 × 25,595.67
  4. Step 4: Simplify right side
    69,980.43x = 2,685,881,375.49
  5. Step 5: Solve for x
    x = 2,685,881,375.49/69,980.43
  6. Step 6: Final answer
    x = 38,380.46

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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.