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Finding the Fourth Proportional to 18,796.40, 28,194.60 and 17,068.40

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Solution

The fourth proportional to 18,796.40, 28,194.60 and 17,068.40 is: 25,602.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,796.40 : 28,194.60 = 17,068.40 : x
  2. Step 2: Convert to fraction form
    18,796.40/28,194.60 = 17,068.40/x
  3. Step 3: Cross multiply
    18,796.40x = 28,194.60 × 17,068.40
  4. Step 4: Simplify right side
    18,796.40x = 481,236,710.64
  5. Step 5: Solve for x
    x = 481,236,710.64/18,796.40
  6. Step 6: Final answer
    x = 25,602.60

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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.