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Finding the Fourth Proportional to 66,183, 99,274.50 and 16,935

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Solution

The fourth proportional to 66,183, 99,274.50 and 16,935 is: 25,402.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,183 : 99,274.50 = 16,935 : x
  2. Step 2: Convert to fraction form
    66,183/99,274.50 = 16,935/x
  3. Step 3: Cross multiply
    66,183x = 99,274.50 × 16,935
  4. Step 4: Simplify right side
    66,183x = 1,681,213,657.50
  5. Step 5: Solve for x
    x = 1,681,213,657.50/66,183
  6. Step 6: Final answer
    x = 25,402.50

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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.