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Finding the Fourth Proportional to 8,466.64, 12,703.30 and 2,623.70

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Solution

The fourth proportional to 8,466.64, 12,703.30 and 2,623.70 is: 3,936.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,466.64 : 12,703.30 = 2,623.70 : x
  2. Step 2: Convert to fraction form
    8,466.64/12,703.30 = 2,623.70/x
  3. Step 3: Cross multiply
    8,466.64x = 12,703.30 × 2,623.70
  4. Step 4: Simplify right side
    8,466.64x = 33,329,648.21
  5. Step 5: Solve for x
    x = 33,329,648.21/8,466.64
  6. Step 6: Final answer
    x = 3,936.59

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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.