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Finding the Fourth Proportional to 8,466.35, 12,696.48 and 2,918.25

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Solution

The fourth proportional to 8,466.35, 12,696.48 and 2,918.25 is: 4,376.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,466.35 : 12,696.48 = 2,918.25 : x
  2. Step 2: Convert to fraction form
    8,466.35/12,696.48 = 2,918.25/x
  3. Step 3: Cross multiply
    8,466.35x = 12,696.48 × 2,918.25
  4. Step 4: Simplify right side
    8,466.35x = 37,051,502.76
  5. Step 5: Solve for x
    x = 37,051,502.76/8,466.35
  6. Step 6: Final answer
    x = 4,376.33

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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.