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Finding the Fourth Proportional to 7,773.71, 10,719.25 and 5,251.44

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Solution

The fourth proportional to 7,773.71, 10,719.25 and 5,251.44 is: 7,241.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,773.71 : 10,719.25 = 5,251.44 : x
  2. Step 2: Convert to fraction form
    7,773.71/10,719.25 = 5,251.44/x
  3. Step 3: Cross multiply
    7,773.71x = 10,719.25 × 5,251.44
  4. Step 4: Simplify right side
    7,773.71x = 56,291,498.22
  5. Step 5: Solve for x
    x = 56,291,498.22/7,773.71
  6. Step 6: Final answer
    x = 7,241.27

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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.