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Finding the Fourth Proportional to 29,181, 43,771.50 and 7,293

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Solution

The fourth proportional to 29,181, 43,771.50 and 7,293 is: 10,939.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,181 : 43,771.50 = 7,293 : x
  2. Step 2: Convert to fraction form
    29,181/43,771.50 = 7,293/x
  3. Step 3: Cross multiply
    29,181x = 43,771.50 × 7,293
  4. Step 4: Simplify right side
    29,181x = 319,225,549.50
  5. Step 5: Solve for x
    x = 319,225,549.50/29,181
  6. Step 6: Final answer
    x = 10,939.50

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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.