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Finding the Fourth Proportional to 38,734.78, 58,111.86 and 11,032.78

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Solution

The fourth proportional to 38,734.78, 58,111.86 and 11,032.78 is: 16,551.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,734.78 : 58,111.86 = 11,032.78 : x
  2. Step 2: Convert to fraction form
    38,734.78/58,111.86 = 11,032.78/x
  3. Step 3: Cross multiply
    38,734.78x = 58,111.86 × 11,032.78
  4. Step 4: Simplify right side
    38,734.78x = 641,135,366.77
  5. Step 5: Solve for x
    x = 641,135,366.77/38,734.78
  6. Step 6: Final answer
    x = 16,551.93

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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.