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Finding the Fourth Proportional to 5,541.68, 8,316.14 and 3,318.84

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Solution

The fourth proportional to 5,541.68, 8,316.14 and 3,318.84 is: 4,980.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,541.68 : 8,316.14 = 3,318.84 : x
  2. Step 2: Convert to fraction form
    5,541.68/8,316.14 = 3,318.84/x
  3. Step 3: Cross multiply
    5,541.68x = 8,316.14 × 3,318.84
  4. Step 4: Simplify right side
    5,541.68x = 27,599,921.48
  5. Step 5: Solve for x
    x = 27,599,921.48/5,541.68
  6. Step 6: Final answer
    x = 4,980.42

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1.5x scale

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.