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Finding the Fourth Proportional to 22,194.42, 30,629.21 and 12,762.98

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Solution

The fourth proportional to 22,194.42, 30,629.21 and 12,762.98 is: 17,613.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,194.42 : 30,629.21 = 12,762.98 : x
  2. Step 2: Convert to fraction form
    22,194.42/30,629.21 = 12,762.98/x
  3. Step 3: Cross multiply
    22,194.42x = 30,629.21 × 12,762.98
  4. Step 4: Simplify right side
    22,194.42x = 390,920,172.52
  5. Step 5: Solve for x
    x = 390,920,172.52/22,194.42
  6. Step 6: Final answer
    x = 17,613.44

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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.