Home / 26,679.31-39,932.09-19,656.51

Finding the Fourth Proportional to 26,679.31, 39,932.09 and 19,656.51

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Solution

The fourth proportional to 26,679.31, 39,932.09 and 19,656.51 is: 29,420.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,679.31 : 39,932.09 = 19,656.51 : x
  2. Step 2: Convert to fraction form
    26,679.31/39,932.09 = 19,656.51/x
  3. Step 3: Cross multiply
    26,679.31x = 39,932.09 × 19,656.51
  4. Step 4: Simplify right side
    26,679.31x = 784,925,352.09
  5. Step 5: Solve for x
    x = 784,925,352.09/26,679.31
  6. Step 6: Final answer
    x = 29,420.75

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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.