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Finding the Fourth Proportional to 7,065.64, 10,604.22 and 3,603.88

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Solution

The fourth proportional to 7,065.64, 10,604.22 and 3,603.88 is: 5,408.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,065.64 : 10,604.22 = 3,603.88 : x
  2. Step 2: Convert to fraction form
    7,065.64/10,604.22 = 3,603.88/x
  3. Step 3: Cross multiply
    7,065.64x = 10,604.22 × 3,603.88
  4. Step 4: Simplify right side
    7,065.64x = 38,216,336.37
  5. Step 5: Solve for x
    x = 38,216,336.37/7,065.64
  6. Step 6: Final answer
    x = 5,408.76

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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.