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Finding the Fourth Proportional to 14,424.60, 19,906.10 and 8,051.79

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Solution

The fourth proportional to 14,424.60, 19,906.10 and 8,051.79 is: 11,111.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,424.60 : 19,906.10 = 8,051.79 : x
  2. Step 2: Convert to fraction form
    14,424.60/19,906.10 = 8,051.79/x
  3. Step 3: Cross multiply
    14,424.60x = 19,906.10 × 8,051.79
  4. Step 4: Simplify right side
    14,424.60x = 160,279,696.66
  5. Step 5: Solve for x
    x = 160,279,696.66/14,424.60
  6. Step 6: Final answer
    x = 11,111.55

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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.