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Finding the Fourth Proportional to 8,341.25, 11,511.29 and 4,615.25

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Solution

The fourth proportional to 8,341.25, 11,511.29 and 4,615.25 is: 6,369.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,341.25 : 11,511.29 = 4,615.25 : x
  2. Step 2: Convert to fraction form
    8,341.25/11,511.29 = 4,615.25/x
  3. Step 3: Cross multiply
    8,341.25x = 11,511.29 × 4,615.25
  4. Step 4: Simplify right side
    8,341.25x = 53,127,481.17
  5. Step 5: Solve for x
    x = 53,127,481.17/8,341.25
  6. Step 6: Final answer
    x = 6,369.25

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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.