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Finding the Fourth Proportional to 39,375, 59,073.90 and 12,725.06

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Solution

The fourth proportional to 39,375, 59,073.90 and 12,725.06 is: 19,091.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,375 : 59,073.90 = 12,725.06 : x
  2. Step 2: Convert to fraction form
    39,375/59,073.90 = 12,725.06/x
  3. Step 3: Cross multiply
    39,375x = 59,073.90 × 12,725.06
  4. Step 4: Simplify right side
    39,375x = 751,718,626.56
  5. Step 5: Solve for x
    x = 751,718,626.56/39,375
  6. Step 6: Final answer
    x = 19,091.27

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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.