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Finding the Fourth Proportional to 4,866.38, 6,715.60 and 2,658.38

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Solution

The fourth proportional to 4,866.38, 6,715.60 and 2,658.38 is: 3,668.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,866.38 : 6,715.60 = 2,658.38 : x
  2. Step 2: Convert to fraction form
    4,866.38/6,715.60 = 2,658.38/x
  3. Step 3: Cross multiply
    4,866.38x = 6,715.60 × 2,658.38
  4. Step 4: Simplify right side
    4,866.38x = 17,852,576.50
  5. Step 5: Solve for x
    x = 17,852,576.50/4,866.38
  6. Step 6: Final answer
    x = 3,668.56

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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.