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Finding the Fourth Proportional to 23,672.85, 32,668.68 and 12,918.48

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Solution

The fourth proportional to 23,672.85, 32,668.68 and 12,918.48 is: 17,827.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,672.85 : 32,668.68 = 12,918.48 : x
  2. Step 2: Convert to fraction form
    23,672.85/32,668.68 = 12,918.48/x
  3. Step 3: Cross multiply
    23,672.85x = 32,668.68 × 12,918.48
  4. Step 4: Simplify right side
    23,672.85x = 422,029,689.21
  5. Step 5: Solve for x
    x = 422,029,689.21/23,672.85
  6. Step 6: Final answer
    x = 17,827.58

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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.