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Finding the Fourth Proportional to 29,336.99, 40,507.22 and 18,021.99

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Solution

The fourth proportional to 29,336.99, 40,507.22 and 18,021.99 is: 24,883.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,336.99 : 40,507.22 = 18,021.99 : x
  2. Step 2: Convert to fraction form
    29,336.99/40,507.22 = 18,021.99/x
  3. Step 3: Cross multiply
    29,336.99x = 40,507.22 × 18,021.99
  4. Step 4: Simplify right side
    29,336.99x = 730,020,910.72
  5. Step 5: Solve for x
    x = 730,020,910.72/29,336.99
  6. Step 6: Final answer
    x = 24,883.98

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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.