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Finding the Fourth Proportional to 10,603.44, 15,905.14 and 4,755.94

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Solution

The fourth proportional to 10,603.44, 15,905.14 and 4,755.94 is: 7,133.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,603.44 : 15,905.14 = 4,755.94 : x
  2. Step 2: Convert to fraction form
    10,603.44/15,905.14 = 4,755.94/x
  3. Step 3: Cross multiply
    10,603.44x = 15,905.14 × 4,755.94
  4. Step 4: Simplify right side
    10,603.44x = 75,643,839.88
  5. Step 5: Solve for x
    x = 75,643,839.88/10,603.44
  6. Step 6: Final answer
    x = 7,133.90

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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.