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Finding the Fourth Proportional to 62,792.87, 94,189.31 and 18,419.78

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Solution

The fourth proportional to 62,792.87, 94,189.31 and 18,419.78 is: 27,629.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,792.87 : 94,189.31 = 18,419.78 : x
  2. Step 2: Convert to fraction form
    62,792.87/94,189.31 = 18,419.78/x
  3. Step 3: Cross multiply
    62,792.87x = 94,189.31 × 18,419.78
  4. Step 4: Simplify right side
    62,792.87x = 1,734,946,264.29
  5. Step 5: Solve for x
    x = 1,734,946,264.29/62,792.87
  6. Step 6: Final answer
    x = 27,629.67

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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.