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Finding the Fourth Proportional to 26,642.88, 39,998.88 and 17,449.92

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Solution

The fourth proportional to 26,642.88, 39,998.88 and 17,449.92 is: 26,197.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,642.88 : 39,998.88 = 17,449.92 : x
  2. Step 2: Convert to fraction form
    26,642.88/39,998.88 = 17,449.92/x
  3. Step 3: Cross multiply
    26,642.88x = 39,998.88 × 17,449.92
  4. Step 4: Simplify right side
    26,642.88x = 697,977,256.09
  5. Step 5: Solve for x
    x = 697,977,256.09/26,642.88
  6. Step 6: Final answer
    x = 26,197.52

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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.