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Finding the Fourth Proportional to 8,015.84, 12,022.55 and 2,820.50

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Solution

The fourth proportional to 8,015.84, 12,022.55 and 2,820.50 is: 4,230.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,015.84 : 12,022.55 = 2,820.50 : x
  2. Step 2: Convert to fraction form
    8,015.84/12,022.55 = 2,820.50/x
  3. Step 3: Cross multiply
    8,015.84x = 12,022.55 × 2,820.50
  4. Step 4: Simplify right side
    8,015.84x = 33,909,588.17
  5. Step 5: Solve for x
    x = 33,909,588.17/8,015.84
  6. Step 6: Final answer
    x = 4,230.32

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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.