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Finding the Fourth Proportional to 8,506.74, 12,764.48 and 3,512.82

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Solution

The fourth proportional to 8,506.74, 12,764.48 and 3,512.82 is: 5,271.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,506.74 : 12,764.48 = 3,512.82 : x
  2. Step 2: Convert to fraction form
    8,506.74/12,764.48 = 3,512.82/x
  3. Step 3: Cross multiply
    8,506.74x = 12,764.48 × 3,512.82
  4. Step 4: Simplify right side
    8,506.74x = 44,839,303.07
  5. Step 5: Solve for x
    x = 44,839,303.07/8,506.74
  6. Step 6: Final answer
    x = 5,271.03

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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.