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Finding the Fourth Proportional to 5,167.46, 7,130.68 and 2,929.68

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Solution

The fourth proportional to 5,167.46, 7,130.68 and 2,929.68 is: 4,042.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,167.46 : 7,130.68 = 2,929.68 : x
  2. Step 2: Convert to fraction form
    5,167.46/7,130.68 = 2,929.68/x
  3. Step 3: Cross multiply
    5,167.46x = 7,130.68 × 2,929.68
  4. Step 4: Simplify right side
    5,167.46x = 20,890,610.58
  5. Step 5: Solve for x
    x = 20,890,610.58/5,167.46
  6. Step 6: Final answer
    x = 4,042.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.