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Finding the Fourth Proportional to 4,482.96, 6,721.20 and 2,290.02

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Solution

The fourth proportional to 4,482.96, 6,721.20 and 2,290.02 is: 3,433.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,482.96 : 6,721.20 = 2,290.02 : x
  2. Step 2: Convert to fraction form
    4,482.96/6,721.20 = 2,290.02/x
  3. Step 3: Cross multiply
    4,482.96x = 6,721.20 × 2,290.02
  4. Step 4: Simplify right side
    4,482.96x = 15,391,682.42
  5. Step 5: Solve for x
    x = 15,391,682.42/4,482.96
  6. Step 6: Final answer
    x = 3,433.37

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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.