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Finding the Fourth Proportional to 8,551.73, 12,829.51 and 3,005.45

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Solution

The fourth proportional to 8,551.73, 12,829.51 and 3,005.45 is: 4,508.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,551.73 : 12,829.51 = 3,005.45 : x
  2. Step 2: Convert to fraction form
    8,551.73/12,829.51 = 3,005.45/x
  3. Step 3: Cross multiply
    8,551.73x = 12,829.51 × 3,005.45
  4. Step 4: Simplify right side
    8,551.73x = 38,558,450.83
  5. Step 5: Solve for x
    x = 38,558,450.83/8,551.73
  6. Step 6: Final answer
    x = 4,508.85

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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.