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Finding the Fourth Proportional to 3,257.71, 4,886.50 and 792.54

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Solution

The fourth proportional to 3,257.71, 4,886.50 and 792.54 is: 1,188.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,257.71 : 4,886.50 = 792.54 : x
  2. Step 2: Convert to fraction form
    3,257.71/4,886.50 = 792.54/x
  3. Step 3: Cross multiply
    3,257.71x = 4,886.50 × 792.54
  4. Step 4: Simplify right side
    3,257.71x = 3,872,756.94
  5. Step 5: Solve for x
    x = 3,872,756.94/3,257.71
  6. Step 6: Final answer
    x = 1,188.80

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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.