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Finding the Fourth Proportional to 60,644.06, 90,865.53 and 36,879.72

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Solution

The fourth proportional to 60,644.06, 90,865.53 and 36,879.72 is: 55,258.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,644.06 : 90,865.53 = 36,879.72 : x
  2. Step 2: Convert to fraction form
    60,644.06/90,865.53 = 36,879.72/x
  3. Step 3: Cross multiply
    60,644.06x = 90,865.53 × 36,879.72
  4. Step 4: Simplify right side
    60,644.06x = 3,351,095,119.65
  5. Step 5: Solve for x
    x = 3,351,095,119.65/60,644.06
  6. Step 6: Final answer
    x = 55,258.42

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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.