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Finding the Fourth Proportional to 38,999.34, 58,503.10 and 12,706.12

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Solution

The fourth proportional to 38,999.34, 58,503.10 and 12,706.12 is: 19,060.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,999.34 : 58,503.10 = 12,706.12 : x
  2. Step 2: Convert to fraction form
    38,999.34/58,503.10 = 12,706.12/x
  3. Step 3: Cross multiply
    38,999.34x = 58,503.10 × 12,706.12
  4. Step 4: Simplify right side
    38,999.34x = 743,347,408.97
  5. Step 5: Solve for x
    x = 743,347,408.97/38,999.34
  6. Step 6: Final answer
    x = 19,060.51

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.