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Finding the Fourth Proportional to 7,167.40, 10,751.10 and 3,668.20

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Solution

The fourth proportional to 7,167.40, 10,751.10 and 3,668.20 is: 5,502.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,167.40 : 10,751.10 = 3,668.20 : x
  2. Step 2: Convert to fraction form
    7,167.40/10,751.10 = 3,668.20/x
  3. Step 3: Cross multiply
    7,167.40x = 10,751.10 × 3,668.20
  4. Step 4: Simplify right side
    7,167.40x = 39,437,185.02
  5. Step 5: Solve for x
    x = 39,437,185.02/7,167.40
  6. Step 6: Final answer
    x = 5,502.30

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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.