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Finding the Fourth Proportional to 7,112.54, 10,668.76 and 1,847.54

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Solution

The fourth proportional to 7,112.54, 10,668.76 and 1,847.54 is: 2,771.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112.54 : 10,668.76 = 1,847.54 : x
  2. Step 2: Convert to fraction form
    7,112.54/10,668.76 = 1,847.54/x
  3. Step 3: Cross multiply
    7,112.54x = 10,668.76 × 1,847.54
  4. Step 4: Simplify right side
    7,112.54x = 19,710,982.90
  5. Step 5: Solve for x
    x = 19,710,982.90/7,112.54
  6. Step 6: Final answer
    x = 2,771.30

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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.