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Finding the Fourth Proportional to 4,860.66, 7,291.02 and 2,668.20

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Solution

The fourth proportional to 4,860.66, 7,291.02 and 2,668.20 is: 4,002.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,860.66 : 7,291.02 = 2,668.20 : x
  2. Step 2: Convert to fraction form
    4,860.66/7,291.02 = 2,668.20/x
  3. Step 3: Cross multiply
    4,860.66x = 7,291.02 × 2,668.20
  4. Step 4: Simplify right side
    4,860.66x = 19,453,899.56
  5. Step 5: Solve for x
    x = 19,453,899.56/4,860.66
  6. Step 6: Final answer
    x = 4,002.32

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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.