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Finding the Fourth Proportional to 26,163.91, 36,106.91 and 15,409.77

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Solution

The fourth proportional to 26,163.91, 36,106.91 and 15,409.77 is: 21,265.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,163.91 : 36,106.91 = 15,409.77 : x
  2. Step 2: Convert to fraction form
    26,163.91/36,106.91 = 15,409.77/x
  3. Step 3: Cross multiply
    26,163.91x = 36,106.91 × 15,409.77
  4. Step 4: Simplify right side
    26,163.91x = 556,399,178.51
  5. Step 5: Solve for x
    x = 556,399,178.51/26,163.91
  6. Step 6: Final answer
    x = 21,265.90

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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.