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Finding the Fourth Proportional to 16,964.40, 25,446.60 and 16,867.20

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Solution

The fourth proportional to 16,964.40, 25,446.60 and 16,867.20 is: 25,300.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,964.40 : 25,446.60 = 16,867.20 : x
  2. Step 2: Convert to fraction form
    16,964.40/25,446.60 = 16,867.20/x
  3. Step 3: Cross multiply
    16,964.40x = 25,446.60 × 16,867.20
  4. Step 4: Simplify right side
    16,964.40x = 429,212,891.52
  5. Step 5: Solve for x
    x = 429,212,891.52/16,964.40
  6. Step 6: Final answer
    x = 25,300.80

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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.