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Finding the Fourth Proportional to 6,603.06, 9,112.40 and 3,619.06

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Solution

The fourth proportional to 6,603.06, 9,112.40 and 3,619.06 is: 4,994.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,603.06 : 9,112.40 = 3,619.06 : x
  2. Step 2: Convert to fraction form
    6,603.06/9,112.40 = 3,619.06/x
  3. Step 3: Cross multiply
    6,603.06x = 9,112.40 × 3,619.06
  4. Step 4: Simplify right side
    6,603.06x = 32,978,322.34
  5. Step 5: Solve for x
    x = 32,978,322.34/6,603.06
  6. Step 6: Final answer
    x = 4,994.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.