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Finding the Fourth Proportional to 12,646.42, 17,453.03 and 6,982.26

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Solution

The fourth proportional to 12,646.42, 17,453.03 and 6,982.26 is: 9,636.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646.42 : 17,453.03 = 6,982.26 : x
  2. Step 2: Convert to fraction form
    12,646.42/17,453.03 = 6,982.26/x
  3. Step 3: Cross multiply
    12,646.42x = 17,453.03 × 6,982.26
  4. Step 4: Simplify right side
    12,646.42x = 121,861,514.70
  5. Step 5: Solve for x
    x = 121,861,514.70/12,646.42
  6. Step 6: Final answer
    x = 9,636.05

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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.