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Finding the Fourth Proportional to 67,568.88, 93,256.65 and 39,291

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Solution

The fourth proportional to 67,568.88, 93,256.65 and 39,291 is: 54,228.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,568.88 : 93,256.65 = 39,291 : x
  2. Step 2: Convert to fraction form
    67,568.88/93,256.65 = 39,291/x
  3. Step 3: Cross multiply
    67,568.88x = 93,256.65 × 39,291
  4. Step 4: Simplify right side
    67,568.88x = 3,664,147,035.15
  5. Step 5: Solve for x
    x = 3,664,147,035.15/67,568.88
  6. Step 6: Final answer
    x = 54,228.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.