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Finding the Fourth Proportional to 5,719.77, 7,892.63 and 3,201.53

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Solution

The fourth proportional to 5,719.77, 7,892.63 and 3,201.53 is: 4,417.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,719.77 : 7,892.63 = 3,201.53 : x
  2. Step 2: Convert to fraction form
    5,719.77/7,892.63 = 3,201.53/x
  3. Step 3: Cross multiply
    5,719.77x = 7,892.63 × 3,201.53
  4. Step 4: Simplify right side
    5,719.77x = 25,268,491.72
  5. Step 5: Solve for x
    x = 25,268,491.72/5,719.77
  6. Step 6: Final answer
    x = 4,417.75

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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.