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Finding the Fourth Proportional to 26,645.66, 39,976.44 and 7,926.32

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Solution

The fourth proportional to 26,645.66, 39,976.44 and 7,926.32 is: 11,891.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,645.66 : 39,976.44 = 7,926.32 : x
  2. Step 2: Convert to fraction form
    26,645.66/39,976.44 = 7,926.32/x
  3. Step 3: Cross multiply
    26,645.66x = 39,976.44 × 7,926.32
  4. Step 4: Simplify right side
    26,645.66x = 316,866,055.90
  5. Step 5: Solve for x
    x = 316,866,055.90/26,645.66
  6. Step 6: Final answer
    x = 11,891.84

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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.