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Finding the Fourth Proportional to 4,682.72, 7,023 and 1,761.32

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Solution

The fourth proportional to 4,682.72, 7,023 and 1,761.32 is: 2,641.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,682.72 : 7,023 = 1,761.32 : x
  2. Step 2: Convert to fraction form
    4,682.72/7,023 = 1,761.32/x
  3. Step 3: Cross multiply
    4,682.72x = 7,023 × 1,761.32
  4. Step 4: Simplify right side
    4,682.72x = 12,369,750.36
  5. Step 5: Solve for x
    x = 12,369,750.36/4,682.72
  6. Step 6: Final answer
    x = 2,641.57

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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.