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Finding the Fourth Proportional to 4,059.76, 6,090.28 and 1,719.77

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Solution

The fourth proportional to 4,059.76, 6,090.28 and 1,719.77 is: 2,579.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,059.76 : 6,090.28 = 1,719.77 : x
  2. Step 2: Convert to fraction form
    4,059.76/6,090.28 = 1,719.77/x
  3. Step 3: Cross multiply
    4,059.76x = 6,090.28 × 1,719.77
  4. Step 4: Simplify right side
    4,059.76x = 10,473,872.24
  5. Step 5: Solve for x
    x = 10,473,872.24/4,059.76
  6. Step 6: Final answer
    x = 2,579.92

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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.