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Finding the Fourth Proportional to 29,057, 43,516.62 and 18,489.32

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Solution

The fourth proportional to 29,057, 43,516.62 and 18,489.32 is: 27,690.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,057 : 43,516.62 = 18,489.32 : x
  2. Step 2: Convert to fraction form
    29,057/43,516.62 = 18,489.32/x
  3. Step 3: Cross multiply
    29,057x = 43,516.62 × 18,489.32
  4. Step 4: Simplify right side
    29,057x = 804,592,712.50
  5. Step 5: Solve for x
    x = 804,592,712.50/29,057
  6. Step 6: Final answer
    x = 27,690.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.