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Finding the Fourth Proportional to 48,978, 67,590.18 and 26,622

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Solution

The fourth proportional to 48,978, 67,590.18 and 26,622 is: 36,738.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,978 : 67,590.18 = 26,622 : x
  2. Step 2: Convert to fraction form
    48,978/67,590.18 = 26,622/x
  3. Step 3: Cross multiply
    48,978x = 67,590.18 × 26,622
  4. Step 4: Simplify right side
    48,978x = 1,799,385,771.96
  5. Step 5: Solve for x
    x = 1,799,385,771.96/48,978
  6. Step 6: Final answer
    x = 36,738.65

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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.