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Finding the Fourth Proportional to 18,541.22, 27,763.23 and 12,709.22

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Solution

The fourth proportional to 18,541.22, 27,763.23 and 12,709.22 is: 19,030.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,541.22 : 27,763.23 = 12,709.22 : x
  2. Step 2: Convert to fraction form
    18,541.22/27,763.23 = 12,709.22/x
  3. Step 3: Cross multiply
    18,541.22x = 27,763.23 × 12,709.22
  4. Step 4: Simplify right side
    18,541.22x = 352,848,997.98
  5. Step 5: Solve for x
    x = 352,848,997.98/18,541.22
  6. Step 6: Final answer
    x = 19,030.52

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1.5x scale

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.