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Finding the Fourth Proportional to 48,999, 67,618.62 and 26,643

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Solution

The fourth proportional to 48,999, 67,618.62 and 26,643 is: 36,767.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,999 : 67,618.62 = 26,643 : x
  2. Step 2: Convert to fraction form
    48,999/67,618.62 = 26,643/x
  3. Step 3: Cross multiply
    48,999x = 67,618.62 × 26,643
  4. Step 4: Simplify right side
    48,999x = 1,801,562,892.66
  5. Step 5: Solve for x
    x = 1,801,562,892.66/48,999
  6. Step 6: Final answer
    x = 36,767.34

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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.