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Finding the Fourth Proportional to 62,143.28, 93,213.84 and 15,396

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Solution

The fourth proportional to 62,143.28, 93,213.84 and 15,396 is: 23,093.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,143.28 : 93,213.84 = 15,396 : x
  2. Step 2: Convert to fraction form
    62,143.28/93,213.84 = 15,396/x
  3. Step 3: Cross multiply
    62,143.28x = 93,213.84 × 15,396
  4. Step 4: Simplify right side
    62,143.28x = 1,435,120,280.64
  5. Step 5: Solve for x
    x = 1,435,120,280.64/62,143.28
  6. Step 6: Final answer
    x = 23,093.73

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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.