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Finding the Fourth Proportional to 36,963, 55,444.98 and 12,339

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Solution

The fourth proportional to 36,963, 55,444.98 and 12,339 is: 18,508.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,963 : 55,444.98 = 12,339 : x
  2. Step 2: Convert to fraction form
    36,963/55,444.98 = 12,339/x
  3. Step 3: Cross multiply
    36,963x = 55,444.98 × 12,339
  4. Step 4: Simplify right side
    36,963x = 684,135,608.22
  5. Step 5: Solve for x
    x = 684,135,608.22/36,963
  6. Step 6: Final answer
    x = 18,508.66

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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.