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Finding the Fourth Proportional to 29,694.89, 40,980.08 and 16,950.15

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Solution

The fourth proportional to 29,694.89, 40,980.08 and 16,950.15 is: 23,391.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,694.89 : 40,980.08 = 16,950.15 : x
  2. Step 2: Convert to fraction form
    29,694.89/40,980.08 = 16,950.15/x
  3. Step 3: Cross multiply
    29,694.89x = 40,980.08 × 16,950.15
  4. Step 4: Simplify right side
    29,694.89x = 694,618,418.26
  5. Step 5: Solve for x
    x = 694,618,418.26/29,694.89
  6. Step 6: Final answer
    x = 23,391.85

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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.