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Finding the Fourth Proportional to 26,361.92, 36,378.51 and 15,749.51

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Solution

The fourth proportional to 26,361.92, 36,378.51 and 15,749.51 is: 21,733.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,361.92 : 36,378.51 = 15,749.51 : x
  2. Step 2: Convert to fraction form
    26,361.92/36,378.51 = 15,749.51/x
  3. Step 3: Cross multiply
    26,361.92x = 36,378.51 × 15,749.51
  4. Step 4: Simplify right side
    26,361.92x = 572,943,525.14
  5. Step 5: Solve for x
    x = 572,943,525.14/26,361.92
  6. Step 6: Final answer
    x = 21,733.75

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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.