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Finding the Fourth Proportional to 29,485.88, 40,689.90 and 16,057.37

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Solution

The fourth proportional to 29,485.88, 40,689.90 and 16,057.37 is: 22,158.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,485.88 : 40,689.90 = 16,057.37 : x
  2. Step 2: Convert to fraction form
    29,485.88/40,689.90 = 16,057.37/x
  3. Step 3: Cross multiply
    29,485.88x = 40,689.90 × 16,057.37
  4. Step 4: Simplify right side
    29,485.88x = 653,372,576.11
  5. Step 5: Solve for x
    x = 653,372,576.11/29,485.88
  6. Step 6: Final answer
    x = 22,158.83

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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.