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Finding the Fourth Proportional to 29,525.99, 40,745.99 and 18,921.77

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Solution

The fourth proportional to 29,525.99, 40,745.99 and 18,921.77 is: 26,112.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,525.99 : 40,745.99 = 18,921.77 : x
  2. Step 2: Convert to fraction form
    29,525.99/40,745.99 = 18,921.77/x
  3. Step 3: Cross multiply
    29,525.99x = 40,745.99 × 18,921.77
  4. Step 4: Simplify right side
    29,525.99x = 770,986,141.14
  5. Step 5: Solve for x
    x = 770,986,141.14/29,525.99
  6. Step 6: Final answer
    x = 26,112.12

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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.