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Finding the Fourth Proportional to 6,603.67, 9,905.70 and 2,903.98

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Solution

The fourth proportional to 6,603.67, 9,905.70 and 2,903.98 is: 4,356.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,603.67 : 9,905.70 = 2,903.98 : x
  2. Step 2: Convert to fraction form
    6,603.67/9,905.70 = 2,903.98/x
  3. Step 3: Cross multiply
    6,603.67x = 9,905.70 × 2,903.98
  4. Step 4: Simplify right side
    6,603.67x = 28,765,954.69
  5. Step 5: Solve for x
    x = 28,765,954.69/6,603.67
  6. Step 6: Final answer
    x = 4,356.06

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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.