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Finding the Fourth Proportional to 26,754.96, 36,921.47 and 15,424.48

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Solution

The fourth proportional to 26,754.96, 36,921.47 and 15,424.48 is: 21,285.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,754.96 : 36,921.47 = 15,424.48 : x
  2. Step 2: Convert to fraction form
    26,754.96/36,921.47 = 15,424.48/x
  3. Step 3: Cross multiply
    26,754.96x = 36,921.47 × 15,424.48
  4. Step 4: Simplify right side
    26,754.96x = 569,494,290.98
  5. Step 5: Solve for x
    x = 569,494,290.98/26,754.96
  6. Step 6: Final answer
    x = 21,285.56

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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.