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Finding the Fourth Proportional to 17,873.88, 24,668.91 and 9,918.67

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Solution

The fourth proportional to 17,873.88, 24,668.91 and 9,918.67 is: 13,689.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,873.88 : 24,668.91 = 9,918.67 : x
  2. Step 2: Convert to fraction form
    17,873.88/24,668.91 = 9,918.67/x
  3. Step 3: Cross multiply
    17,873.88x = 24,668.91 × 9,918.67
  4. Step 4: Simplify right side
    17,873.88x = 244,682,654.21
  5. Step 5: Solve for x
    x = 244,682,654.21/17,873.88
  6. Step 6: Final answer
    x = 13,689.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.