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Finding the Fourth Proportional to 23,670.78, 35,512.34 and 8,879.98

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Solution

The fourth proportional to 23,670.78, 35,512.34 and 8,879.98 is: 13,322.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,670.78 : 35,512.34 = 8,879.98 : x
  2. Step 2: Convert to fraction form
    23,670.78/35,512.34 = 8,879.98/x
  3. Step 3: Cross multiply
    23,670.78x = 35,512.34 × 8,879.98
  4. Step 4: Simplify right side
    23,670.78x = 315,348,802.37
  5. Step 5: Solve for x
    x = 315,348,802.37/23,670.78
  6. Step 6: Final answer
    x = 13,322.28

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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.