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Finding the Fourth Proportional to 8,466.84, 12,696.20 and 4,860.06

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Solution

The fourth proportional to 8,466.84, 12,696.20 and 4,860.06 is: 7,287.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,466.84 : 12,696.20 = 4,860.06 : x
  2. Step 2: Convert to fraction form
    8,466.84/12,696.20 = 4,860.06/x
  3. Step 3: Cross multiply
    8,466.84x = 12,696.20 × 4,860.06
  4. Step 4: Simplify right side
    8,466.84x = 61,704,293.77
  5. Step 5: Solve for x
    x = 61,704,293.77/8,466.84
  6. Step 6: Final answer
    x = 7,287.76

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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.