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Finding the Fourth Proportional to 26,755.99, 36,922.89 and 15,425.51

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Solution

The fourth proportional to 26,755.99, 36,922.89 and 15,425.51 is: 21,286.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,755.99 : 36,922.89 = 15,425.51 : x
  2. Step 2: Convert to fraction form
    26,755.99/36,922.89 = 15,425.51/x
  3. Step 3: Cross multiply
    26,755.99x = 36,922.89 × 15,425.51
  4. Step 4: Simplify right side
    26,755.99x = 569,554,224.31
  5. Step 5: Solve for x
    x = 569,554,224.31/26,755.99
  6. Step 6: Final answer
    x = 21,286.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.