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Finding the Fourth Proportional to 45,395.48, 68,093.22 and 12,115.67

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Solution

The fourth proportional to 45,395.48, 68,093.22 and 12,115.67 is: 18,173.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,395.48 : 68,093.22 = 12,115.67 : x
  2. Step 2: Convert to fraction form
    45,395.48/68,093.22 = 12,115.67/x
  3. Step 3: Cross multiply
    45,395.48x = 68,093.22 × 12,115.67
  4. Step 4: Simplify right side
    45,395.48x = 824,994,642.29
  5. Step 5: Solve for x
    x = 824,994,642.29/45,395.48
  6. Step 6: Final answer
    x = 18,173.50

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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.