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Finding the Fourth Proportional to 65,524.50, 90,423.90 and 35,716.50

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Solution

The fourth proportional to 65,524.50, 90,423.90 and 35,716.50 is: 49,288.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,524.50 : 90,423.90 = 35,716.50 : x
  2. Step 2: Convert to fraction form
    65,524.50/90,423.90 = 35,716.50/x
  3. Step 3: Cross multiply
    65,524.50x = 90,423.90 × 35,716.50
  4. Step 4: Simplify right side
    65,524.50x = 3,229,625,224.35
  5. Step 5: Solve for x
    x = 3,229,625,224.35/65,524.50
  6. Step 6: Final answer
    x = 49,288.82

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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.