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Finding the Fourth Proportional to 26,492.80, 39,739.20 and 11,694.10

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Solution

The fourth proportional to 26,492.80, 39,739.20 and 11,694.10 is: 17,541.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,492.80 : 39,739.20 = 11,694.10 : x
  2. Step 2: Convert to fraction form
    26,492.80/39,739.20 = 11,694.10/x
  3. Step 3: Cross multiply
    26,492.80x = 39,739.20 × 11,694.10
  4. Step 4: Simplify right side
    26,492.80x = 464,714,178.72
  5. Step 5: Solve for x
    x = 464,714,178.72/26,492.80
  6. Step 6: Final answer
    x = 17,541.15

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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.