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Finding the Fourth Proportional to 7,862.76, 11,794.14 and 2,668.50

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Solution

The fourth proportional to 7,862.76, 11,794.14 and 2,668.50 is: 4,002.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,862.76 : 11,794.14 = 2,668.50 : x
  2. Step 2: Convert to fraction form
    7,862.76/11,794.14 = 2,668.50/x
  3. Step 3: Cross multiply
    7,862.76x = 11,794.14 × 2,668.50
  4. Step 4: Simplify right side
    7,862.76x = 31,472,662.59
  5. Step 5: Solve for x
    x = 31,472,662.59/7,862.76
  6. Step 6: Final answer
    x = 4,002.75

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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.