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Finding the Fourth Proportional to 7,603.02, 11,403.59 and 3,219.93

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Solution

The fourth proportional to 7,603.02, 11,403.59 and 3,219.93 is: 4,829.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,603.02 : 11,403.59 = 3,219.93 : x
  2. Step 2: Convert to fraction form
    7,603.02/11,403.59 = 3,219.93/x
  3. Step 3: Cross multiply
    7,603.02x = 11,403.59 × 3,219.93
  4. Step 4: Simplify right side
    7,603.02x = 36,718,745.45
  5. Step 5: Solve for x
    x = 36,718,745.45/7,603.02
  6. Step 6: Final answer
    x = 4,829.49

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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.