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Finding the Fourth Proportional to 12,683.73, 19,026.51 and 3,917.51

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Solution

The fourth proportional to 12,683.73, 19,026.51 and 3,917.51 is: 5,876.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,683.73 : 19,026.51 = 3,917.51 : x
  2. Step 2: Convert to fraction form
    12,683.73/19,026.51 = 3,917.51/x
  3. Step 3: Cross multiply
    12,683.73x = 19,026.51 × 3,917.51
  4. Step 4: Simplify right side
    12,683.73x = 74,536,428.47
  5. Step 5: Solve for x
    x = 74,536,428.47/12,683.73
  6. Step 6: Final answer
    x = 5,876.54

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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.