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Finding the Fourth Proportional to 23,646.39, 32,631.03 and 12,891.03

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Solution

The fourth proportional to 23,646.39, 32,631.03 and 12,891.03 is: 17,789.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,646.39 : 32,631.03 = 12,891.03 : x
  2. Step 2: Convert to fraction form
    23,646.39/32,631.03 = 12,891.03/x
  3. Step 3: Cross multiply
    23,646.39x = 32,631.03 × 12,891.03
  4. Step 4: Simplify right side
    23,646.39x = 420,647,586.66
  5. Step 5: Solve for x
    x = 420,647,586.66/23,646.39
  6. Step 6: Final answer
    x = 17,789.08

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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.