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Finding the Fourth Proportional to 2,370.76, 3,556.14 and 910.60

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Solution

The fourth proportional to 2,370.76, 3,556.14 and 910.60 is: 1,365.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,370.76 : 3,556.14 = 910.60 : x
  2. Step 2: Convert to fraction form
    2,370.76/3,556.14 = 910.60/x
  3. Step 3: Cross multiply
    2,370.76x = 3,556.14 × 910.60
  4. Step 4: Simplify right side
    2,370.76x = 3,238,221.08
  5. Step 5: Solve for x
    x = 3,238,221.08/2,370.76
  6. Step 6: Final answer
    x = 1,365.90

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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.