Home / 65,605.09-98,410.68-21,235.33

Finding the Fourth Proportional to 65,605.09, 98,410.68 and 21,235.33

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Solution

The fourth proportional to 65,605.09, 98,410.68 and 21,235.33 is: 31,853.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,605.09 : 98,410.68 = 21,235.33 : x
  2. Step 2: Convert to fraction form
    65,605.09/98,410.68 = 21,235.33/x
  3. Step 3: Cross multiply
    65,605.09x = 98,410.68 × 21,235.33
  4. Step 4: Simplify right side
    65,605.09x = 2,089,783,265.32
  5. Step 5: Solve for x
    x = 2,089,783,265.32/65,605.09
  6. Step 6: Final answer
    x = 31,853.98

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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.