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Finding the Fourth Proportional to 38,993.56, 53,786.34 and 25,565.69

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Solution

The fourth proportional to 38,993.56, 53,786.34 and 25,565.69 is: 35,264.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,993.56 : 53,786.34 = 25,565.69 : x
  2. Step 2: Convert to fraction form
    38,993.56/53,786.34 = 25,565.69/x
  3. Step 3: Cross multiply
    38,993.56x = 53,786.34 × 25,565.69
  4. Step 4: Simplify right side
    38,993.56x = 1,375,084,894.67
  5. Step 5: Solve for x
    x = 1,375,084,894.67/38,993.56
  6. Step 6: Final answer
    x = 35,264.41

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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.