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Finding the Fourth Proportional to 5,751.84, 8,621.64 and 3,281.34

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Solution

The fourth proportional to 5,751.84, 8,621.64 and 3,281.34 is: 4,918.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,751.84 : 8,621.64 = 3,281.34 : x
  2. Step 2: Convert to fraction form
    5,751.84/8,621.64 = 3,281.34/x
  3. Step 3: Cross multiply
    5,751.84x = 8,621.64 × 3,281.34
  4. Step 4: Simplify right side
    5,751.84x = 28,290,532.20
  5. Step 5: Solve for x
    x = 28,290,532.20/5,751.84
  6. Step 6: Final answer
    x = 4,918.52

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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.