Home / 39,986.06-59,979.06-11,906.51

Finding the Fourth Proportional to 39,986.06, 59,979.06 and 11,906.51

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Solution

The fourth proportional to 39,986.06, 59,979.06 and 11,906.51 is: 17,859.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,986.06 : 59,979.06 = 11,906.51 : x
  2. Step 2: Convert to fraction form
    39,986.06/59,979.06 = 11,906.51/x
  3. Step 3: Cross multiply
    39,986.06x = 59,979.06 × 11,906.51
  4. Step 4: Simplify right side
    39,986.06x = 714,140,977.79
  5. Step 5: Solve for x
    x = 714,140,977.79/39,986.06
  6. Step 6: Final answer
    x = 17,859.75

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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.