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Finding the Fourth Proportional to 26,642.99, 39,949.76 and 16,761.12

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Solution

The fourth proportional to 26,642.99, 39,949.76 and 16,761.12 is: 25,132.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,642.99 : 39,949.76 = 16,761.12 : x
  2. Step 2: Convert to fraction form
    26,642.99/39,949.76 = 16,761.12/x
  3. Step 3: Cross multiply
    26,642.99x = 39,949.76 × 16,761.12
  4. Step 4: Simplify right side
    26,642.99x = 669,602,721.33
  5. Step 5: Solve for x
    x = 669,602,721.33/26,642.99
  6. Step 6: Final answer
    x = 25,132.42

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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.