Home / 65,583.35-98,378.09-21,213.56

Finding the Fourth Proportional to 65,583.35, 98,378.09 and 21,213.56

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Solution

The fourth proportional to 65,583.35, 98,378.09 and 21,213.56 is: 31,821.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,583.35 : 98,378.09 = 21,213.56 : x
  2. Step 2: Convert to fraction form
    65,583.35/98,378.09 = 21,213.56/x
  3. Step 3: Cross multiply
    65,583.35x = 98,378.09 × 21,213.56
  4. Step 4: Simplify right side
    65,583.35x = 2,086,949,438.62
  5. Step 5: Solve for x
    x = 2,086,949,438.62/65,583.35
  6. Step 6: Final answer
    x = 31,821.33

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1.5x scale

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.