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Finding the Fourth Proportional to 4,827.72, 7,241.32 and 1,707.88

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Solution

The fourth proportional to 4,827.72, 7,241.32 and 1,707.88 is: 2,561.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,827.72 : 7,241.32 = 1,707.88 : x
  2. Step 2: Convert to fraction form
    4,827.72/7,241.32 = 1,707.88/x
  3. Step 3: Cross multiply
    4,827.72x = 7,241.32 × 1,707.88
  4. Step 4: Simplify right side
    4,827.72x = 12,367,305.60
  5. Step 5: Solve for x
    x = 12,367,305.60/4,827.72
  6. Step 6: Final answer
    x = 2,561.73

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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.