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Finding the Fourth Proportional to 27,662.80, 41,429.40 and 17,165.20

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Solution

The fourth proportional to 27,662.80, 41,429.40 and 17,165.20 is: 25,707.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,662.80 : 41,429.40 = 17,165.20 : x
  2. Step 2: Convert to fraction form
    27,662.80/41,429.40 = 17,165.20/x
  3. Step 3: Cross multiply
    27,662.80x = 41,429.40 × 17,165.20
  4. Step 4: Simplify right side
    27,662.80x = 711,143,936.88
  5. Step 5: Solve for x
    x = 711,143,936.88/27,662.80
  6. Step 6: Final answer
    x = 25,707.59

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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.