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Finding the Fourth Proportional to 8,732.54, 13,100.18 and 2,890.51

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Solution

The fourth proportional to 8,732.54, 13,100.18 and 2,890.51 is: 4,336.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,732.54 : 13,100.18 = 2,890.51 : x
  2. Step 2: Convert to fraction form
    8,732.54/13,100.18 = 2,890.51/x
  3. Step 3: Cross multiply
    8,732.54x = 13,100.18 × 2,890.51
  4. Step 4: Simplify right side
    8,732.54x = 37,866,154.09
  5. Step 5: Solve for x
    x = 37,866,154.09/8,732.54
  6. Step 6: Final answer
    x = 4,336.21

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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.