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Finding the Fourth Proportional to 29,165.80, 40,243.62 and 16,589.80

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Solution

The fourth proportional to 29,165.80, 40,243.62 and 16,589.80 is: 22,890.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,165.80 : 40,243.62 = 16,589.80 : x
  2. Step 2: Convert to fraction form
    29,165.80/40,243.62 = 16,589.80/x
  3. Step 3: Cross multiply
    29,165.80x = 40,243.62 × 16,589.80
  4. Step 4: Simplify right side
    29,165.80x = 667,633,607.08
  5. Step 5: Solve for x
    x = 667,633,607.08/29,165.80
  6. Step 6: Final answer
    x = 22,890.98

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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.