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Finding the Fourth Proportional to 60,408.60, 90,623.70 and 25,351.80

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Solution

The fourth proportional to 60,408.60, 90,623.70 and 25,351.80 is: 38,032.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,408.60 : 90,623.70 = 25,351.80 : x
  2. Step 2: Convert to fraction form
    60,408.60/90,623.70 = 25,351.80/x
  3. Step 3: Cross multiply
    60,408.60x = 90,623.70 × 25,351.80
  4. Step 4: Simplify right side
    60,408.60x = 2,297,473,917.66
  5. Step 5: Solve for x
    x = 2,297,473,917.66/60,408.60
  6. Step 6: Final answer
    x = 38,032.23

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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.