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Finding the Fourth Proportional to 3,327.90, 4,995.90 and 1,683.60

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Solution

The fourth proportional to 3,327.90, 4,995.90 and 1,683.60 is: 2,527.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,327.90 : 4,995.90 = 1,683.60 : x
  2. Step 2: Convert to fraction form
    3,327.90/4,995.90 = 1,683.60/x
  3. Step 3: Cross multiply
    3,327.90x = 4,995.90 × 1,683.60
  4. Step 4: Simplify right side
    3,327.90x = 8,411,097.24
  5. Step 5: Solve for x
    x = 8,411,097.24/3,327.90
  6. Step 6: Final answer
    x = 2,527.45

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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.