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Finding the Fourth Proportional to 8,551.80, 12,829.12 and 3,003.71

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Solution

The fourth proportional to 8,551.80, 12,829.12 and 3,003.71 is: 4,506.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,551.80 : 12,829.12 = 3,003.71 : x
  2. Step 2: Convert to fraction form
    8,551.80/12,829.12 = 3,003.71/x
  3. Step 3: Cross multiply
    8,551.80x = 12,829.12 × 3,003.71
  4. Step 4: Simplify right side
    8,551.80x = 38,534,956.04
  5. Step 5: Solve for x
    x = 38,534,956.04/8,551.80
  6. Step 6: Final answer
    x = 4,506.06

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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.