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Finding the Fourth Proportional to 4,676.40, 7,012.17 and 2,917.08

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Solution

The fourth proportional to 4,676.40, 7,012.17 and 2,917.08 is: 4,374.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,676.40 : 7,012.17 = 2,917.08 : x
  2. Step 2: Convert to fraction form
    4,676.40/7,012.17 = 2,917.08/x
  3. Step 3: Cross multiply
    4,676.40x = 7,012.17 × 2,917.08
  4. Step 4: Simplify right side
    4,676.40x = 20,455,060.86
  5. Step 5: Solve for x
    x = 20,455,060.86/4,676.40
  6. Step 6: Final answer
    x = 4,374.10

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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.