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Finding the Fourth Proportional to 29,586.40, 40,828.03 and 16,157.64

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Solution

The fourth proportional to 29,586.40, 40,828.03 and 16,157.64 is: 22,296.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,586.40 : 40,828.03 = 16,157.64 : x
  2. Step 2: Convert to fraction form
    29,586.40/40,828.03 = 16,157.64/x
  3. Step 3: Cross multiply
    29,586.40x = 40,828.03 × 16,157.64
  4. Step 4: Simplify right side
    29,586.40x = 659,684,610.65
  5. Step 5: Solve for x
    x = 659,684,610.65/29,586.40
  6. Step 6: Final answer
    x = 22,296.89

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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.