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Finding the Fourth Proportional to 3,090.55, 4,265.23 and 1,764.68

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Solution

The fourth proportional to 3,090.55, 4,265.23 and 1,764.68 is: 2,435.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.55 : 4,265.23 = 1,764.68 : x
  2. Step 2: Convert to fraction form
    3,090.55/4,265.23 = 1,764.68/x
  3. Step 3: Cross multiply
    3,090.55x = 4,265.23 × 1,764.68
  4. Step 4: Simplify right side
    3,090.55x = 7,526,760.61
  5. Step 5: Solve for x
    x = 7,526,760.61/3,090.55
  6. Step 6: Final answer
    x = 2,435.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.