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Finding the Fourth Proportional to 22,153.48, 30,571.70 and 12,217.48

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Solution

The fourth proportional to 22,153.48, 30,571.70 and 12,217.48 is: 16,860.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,153.48 : 30,571.70 = 12,217.48 : x
  2. Step 2: Convert to fraction form
    22,153.48/30,571.70 = 12,217.48/x
  3. Step 3: Cross multiply
    22,153.48x = 30,571.70 × 12,217.48
  4. Step 4: Simplify right side
    22,153.48x = 373,509,133.32
  5. Step 5: Solve for x
    x = 373,509,133.32/22,153.48
  6. Step 6: Final answer
    x = 16,860.07

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.