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Finding the Fourth Proportional to 27,107.51, 40,668.81 and 11,319.99

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Solution

The fourth proportional to 27,107.51, 40,668.81 and 11,319.99 is: 16,983.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,107.51 : 40,668.81 = 11,319.99 : x
  2. Step 2: Convert to fraction form
    27,107.51/40,668.81 = 11,319.99/x
  3. Step 3: Cross multiply
    27,107.51x = 40,668.81 × 11,319.99
  4. Step 4: Simplify right side
    27,107.51x = 460,370,327.55
  5. Step 5: Solve for x
    x = 460,370,327.55/27,107.51
  6. Step 6: Final answer
    x = 16,983.13

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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.