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Finding the Fourth Proportional to 6,958.98, 9,603.39 and 3,815.16

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Solution

The fourth proportional to 6,958.98, 9,603.39 and 3,815.16 is: 5,264.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,958.98 : 9,603.39 = 3,815.16 : x
  2. Step 2: Convert to fraction form
    6,958.98/9,603.39 = 3,815.16/x
  3. Step 3: Cross multiply
    6,958.98x = 9,603.39 × 3,815.16
  4. Step 4: Simplify right side
    6,958.98x = 36,638,469.39
  5. Step 5: Solve for x
    x = 36,638,469.39/6,958.98
  6. Step 6: Final answer
    x = 5,264.92

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1.5x scale

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.