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Finding the Fourth Proportional to 26,798.40, 40,181.40 and 12,004.56

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Solution

The fourth proportional to 26,798.40, 40,181.40 and 12,004.56 is: 17,999.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,798.40 : 40,181.40 = 12,004.56 : x
  2. Step 2: Convert to fraction form
    26,798.40/40,181.40 = 12,004.56/x
  3. Step 3: Cross multiply
    26,798.40x = 40,181.40 × 12,004.56
  4. Step 4: Simplify right side
    26,798.40x = 482,360,027.18
  5. Step 5: Solve for x
    x = 482,360,027.18/26,798.40
  6. Step 6: Final answer
    x = 17,999.58

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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.