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Finding the Fourth Proportional to 3,316.96, 4,975.42 and 1,008.46

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Solution

The fourth proportional to 3,316.96, 4,975.42 and 1,008.46 is: 1,512.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.96 : 4,975.42 = 1,008.46 : x
  2. Step 2: Convert to fraction form
    3,316.96/4,975.42 = 1,008.46/x
  3. Step 3: Cross multiply
    3,316.96x = 4,975.42 × 1,008.46
  4. Step 4: Simplify right side
    3,316.96x = 5,017,512.05
  5. Step 5: Solve for x
    x = 5,017,512.05/3,316.96
  6. Step 6: Final answer
    x = 1,512.68

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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.