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Finding the Fourth Proportional to 69,269.40, 95,589.86 and 39,054.45

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Solution

The fourth proportional to 69,269.40, 95,589.86 and 39,054.45 is: 53,894.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,269.40 : 95,589.86 = 39,054.45 : x
  2. Step 2: Convert to fraction form
    69,269.40/95,589.86 = 39,054.45/x
  3. Step 3: Cross multiply
    69,269.40x = 95,589.86 × 39,054.45
  4. Step 4: Simplify right side
    69,269.40x = 3,733,209,571.07
  5. Step 5: Solve for x
    x = 3,733,209,571.07/69,269.40
  6. Step 6: Final answer
    x = 53,894.07

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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.