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Finding the Fourth Proportional to 18,588.75, 27,883.13 and 11,668.11

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Solution

The fourth proportional to 18,588.75, 27,883.13 and 11,668.11 is: 17,502.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,588.75 : 27,883.13 = 11,668.11 : x
  2. Step 2: Convert to fraction form
    18,588.75/27,883.13 = 11,668.11/x
  3. Step 3: Cross multiply
    18,588.75x = 27,883.13 × 11,668.11
  4. Step 4: Simplify right side
    18,588.75x = 325,343,369.64
  5. Step 5: Solve for x
    x = 325,343,369.64/18,588.75
  6. Step 6: Final answer
    x = 17,502.17

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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.