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Finding the Fourth Proportional to 29,512, 40,728.27 and 16,937.56

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Solution

The fourth proportional to 29,512, 40,728.27 and 16,937.56 is: 23,374.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,512 : 40,728.27 = 16,937.56 : x
  2. Step 2: Convert to fraction form
    29,512/40,728.27 = 16,937.56/x
  3. Step 3: Cross multiply
    29,512x = 40,728.27 × 16,937.56
  4. Step 4: Simplify right side
    29,512x = 689,837,516.82
  5. Step 5: Solve for x
    x = 689,837,516.82/29,512
  6. Step 6: Final answer
    x = 23,374.81

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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.