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Finding the Fourth Proportional to 18,682.80, 26,097.60 and 18,682.80

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Solution

The fourth proportional to 18,682.80, 26,097.60 and 18,682.80 is: 26,097.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,682.80 : 26,097.60 = 18,682.80 : x
  2. Step 2: Convert to fraction form
    18,682.80/26,097.60 = 18,682.80/x
  3. Step 3: Cross multiply
    18,682.80x = 26,097.60 × 18,682.80
  4. Step 4: Simplify right side
    18,682.80x = 487,576,241.28
  5. Step 5: Solve for x
    x = 487,576,241.28/18,682.80
  6. Step 6: Final answer
    x = 26,097.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.