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Finding the Fourth Proportional to 48,990, 67,607.28 and 26,634

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Solution

The fourth proportional to 48,990, 67,607.28 and 26,634 is: 36,755.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,990 : 67,607.28 = 26,634 : x
  2. Step 2: Convert to fraction form
    48,990/67,607.28 = 26,634/x
  3. Step 3: Cross multiply
    48,990x = 67,607.28 × 26,634
  4. Step 4: Simplify right side
    48,990x = 1,800,652,295.52
  5. Step 5: Solve for x
    x = 1,800,652,295.52/48,990
  6. Step 6: Final answer
    x = 36,755.51

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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.