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Finding the Fourth Proportional to 18,415.14, 27,603 and 7,306.44

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Solution

The fourth proportional to 18,415.14, 27,603 and 7,306.44 is: 10,951.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,415.14 : 27,603 = 7,306.44 : x
  2. Step 2: Convert to fraction form
    18,415.14/27,603 = 7,306.44/x
  3. Step 3: Cross multiply
    18,415.14x = 27,603 × 7,306.44
  4. Step 4: Simplify right side
    18,415.14x = 201,679,663.32
  5. Step 5: Solve for x
    x = 201,679,663.32/18,415.14
  6. Step 6: Final answer
    x = 10,951.84

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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.