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Finding the Fourth Proportional to 18,467, 27,700.50 and 7,523

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Solution

The fourth proportional to 18,467, 27,700.50 and 7,523 is: 11,284.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,467 : 27,700.50 = 7,523 : x
  2. Step 2: Convert to fraction form
    18,467/27,700.50 = 7,523/x
  3. Step 3: Cross multiply
    18,467x = 27,700.50 × 7,523
  4. Step 4: Simplify right side
    18,467x = 208,390,861.50
  5. Step 5: Solve for x
    x = 208,390,861.50/18,467
  6. Step 6: Final answer
    x = 11,284.50

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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.