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Finding the Fourth Proportional to 8,476.76, 12,698.60 and 4,028.11

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Solution

The fourth proportional to 8,476.76, 12,698.60 and 4,028.11 is: 6,034.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,476.76 : 12,698.60 = 4,028.11 : x
  2. Step 2: Convert to fraction form
    8,476.76/12,698.60 = 4,028.11/x
  3. Step 3: Cross multiply
    8,476.76x = 12,698.60 × 4,028.11
  4. Step 4: Simplify right side
    8,476.76x = 51,151,305.76
  5. Step 5: Solve for x
    x = 51,151,305.76/8,476.76
  6. Step 6: Final answer
    x = 6,034.30

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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.