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Finding the Fourth Proportional to 4,866.63, 6,715.94 and 2,658.63

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Solution

The fourth proportional to 4,866.63, 6,715.94 and 2,658.63 is: 3,668.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,866.63 : 6,715.94 = 2,658.63 : x
  2. Step 2: Convert to fraction form
    4,866.63/6,715.94 = 2,658.63/x
  3. Step 3: Cross multiply
    4,866.63x = 6,715.94 × 2,658.63
  4. Step 4: Simplify right side
    4,866.63x = 17,855,172.63
  5. Step 5: Solve for x
    x = 17,855,172.63/4,866.63
  6. Step 6: Final answer
    x = 3,668.90

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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.