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Finding the Fourth Proportional to 22,126.14, 30,534.06 and 12,190.14

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Solution

The fourth proportional to 22,126.14, 30,534.06 and 12,190.14 is: 16,822.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,126.14 : 30,534.06 = 12,190.14 : x
  2. Step 2: Convert to fraction form
    22,126.14/30,534.06 = 12,190.14/x
  3. Step 3: Cross multiply
    22,126.14x = 30,534.06 × 12,190.14
  4. Step 4: Simplify right side
    22,126.14x = 372,214,466.17
  5. Step 5: Solve for x
    x = 372,214,466.17/22,126.14
  6. Step 6: Final answer
    x = 16,822.39

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Why These Related Problems?

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