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Finding the Fourth Proportional to 18,668.24, 27,999.12 and 6,356.24

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Solution

The fourth proportional to 18,668.24, 27,999.12 and 6,356.24 is: 9,533.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,668.24 : 27,999.12 = 6,356.24 : x
  2. Step 2: Convert to fraction form
    18,668.24/27,999.12 = 6,356.24/x
  3. Step 3: Cross multiply
    18,668.24x = 27,999.12 × 6,356.24
  4. Step 4: Simplify right side
    18,668.24x = 177,969,126.51
  5. Step 5: Solve for x
    x = 177,969,126.51/18,668.24
  6. Step 6: Final answer
    x = 9,533.26

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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.