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Finding the Fourth Proportional to 43,668.52, 65,447.98 and 18,679.18

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Solution

The fourth proportional to 43,668.52, 65,447.98 and 18,679.18 is: 27,995.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,668.52 : 65,447.98 = 18,679.18 : x
  2. Step 2: Convert to fraction form
    43,668.52/65,447.98 = 18,679.18/x
  3. Step 3: Cross multiply
    43,668.52x = 65,447.98 × 18,679.18
  4. Step 4: Simplify right side
    43,668.52x = 1,222,514,599.06
  5. Step 5: Solve for x
    x = 1,222,514,599.06/43,668.52
  6. Step 6: Final answer
    x = 27,995.33

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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.