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Finding the Fourth Proportional to 39,408.84, 59,122.17 and 13,114.62

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Solution

The fourth proportional to 39,408.84, 59,122.17 and 13,114.62 is: 19,674.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,408.84 : 59,122.17 = 13,114.62 : x
  2. Step 2: Convert to fraction form
    39,408.84/59,122.17 = 13,114.62/x
  3. Step 3: Cross multiply
    39,408.84x = 59,122.17 × 13,114.62
  4. Step 4: Simplify right side
    39,408.84x = 775,364,793.13
  5. Step 5: Solve for x
    x = 775,364,793.13/39,408.84
  6. Step 6: Final answer
    x = 19,674.90

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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.