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Finding the Fourth Proportional to 84,969.96, 127,446.68 and 25,806.15

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Solution

The fourth proportional to 84,969.96, 127,446.68 and 25,806.15 is: 38,706.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,969.96 : 127,446.68 = 25,806.15 : x
  2. Step 2: Convert to fraction form
    84,969.96/127,446.68 = 25,806.15/x
  3. Step 3: Cross multiply
    84,969.96x = 127,446.68 × 25,806.15
  4. Step 4: Simplify right side
    84,969.96x = 3,288,908,012.05
  5. Step 5: Solve for x
    x = 3,288,908,012.05/84,969.96
  6. Step 6: Final answer
    x = 38,706.71

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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.