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Finding the Fourth Proportional to 6,658.52, 9,974.41 and 3,316.70

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Solution

The fourth proportional to 6,658.52, 9,974.41 and 3,316.70 is: 4,968.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,658.52 : 9,974.41 = 3,316.70 : x
  2. Step 2: Convert to fraction form
    6,658.52/9,974.41 = 3,316.70/x
  3. Step 3: Cross multiply
    6,658.52x = 9,974.41 × 3,316.70
  4. Step 4: Simplify right side
    6,658.52x = 33,082,125.65
  5. Step 5: Solve for x
    x = 33,082,125.65/6,658.52
  6. Step 6: Final answer
    x = 4,968.39

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1.5x scale

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.