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Finding the Fourth Proportional to 6,316.99, 8,719.18 and 3,665.25

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Solution

The fourth proportional to 6,316.99, 8,719.18 and 3,665.25 is: 5,059.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,316.99 : 8,719.18 = 3,665.25 : x
  2. Step 2: Convert to fraction form
    6,316.99/8,719.18 = 3,665.25/x
  3. Step 3: Cross multiply
    6,316.99x = 8,719.18 × 3,665.25
  4. Step 4: Simplify right side
    6,316.99x = 31,957,965.33
  5. Step 5: Solve for x
    x = 31,957,965.33/6,316.99
  6. Step 6: Final answer
    x = 5,059.05

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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.