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Finding the Fourth Proportional to 8,918.13, 13,373.25 and 2,676.94

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Solution

The fourth proportional to 8,918.13, 13,373.25 and 2,676.94 is: 4,014.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.13 : 13,373.25 = 2,676.94 : x
  2. Step 2: Convert to fraction form
    8,918.13/13,373.25 = 2,676.94/x
  3. Step 3: Cross multiply
    8,918.13x = 13,373.25 × 2,676.94
  4. Step 4: Simplify right side
    8,918.13x = 35,799,374.47
  5. Step 5: Solve for x
    x = 35,799,374.47/8,918.13
  6. Step 6: Final answer
    x = 4,014.23

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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.