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Finding the Fourth Proportional to 18,442.12, 27,668.04 and 9,674.68

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Solution

The fourth proportional to 18,442.12, 27,668.04 and 9,674.68 is: 14,514.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,442.12 : 27,668.04 = 9,674.68 : x
  2. Step 2: Convert to fraction form
    18,442.12/27,668.04 = 9,674.68/x
  3. Step 3: Cross multiply
    18,442.12x = 27,668.04 × 9,674.68
  4. Step 4: Simplify right side
    18,442.12x = 267,679,433.23
  5. Step 5: Solve for x
    x = 267,679,433.23/18,442.12
  6. Step 6: Final answer
    x = 14,514.57

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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.