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Finding the Fourth Proportional to 8,962.68, 13,443.79 and 2,388.84

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Solution

The fourth proportional to 8,962.68, 13,443.79 and 2,388.84 is: 3,583.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,962.68 : 13,443.79 = 2,388.84 : x
  2. Step 2: Convert to fraction form
    8,962.68/13,443.79 = 2,388.84/x
  3. Step 3: Cross multiply
    8,962.68x = 13,443.79 × 2,388.84
  4. Step 4: Simplify right side
    8,962.68x = 32,115,090.94
  5. Step 5: Solve for x
    x = 32,115,090.94/8,962.68
  6. Step 6: Final answer
    x = 3,583.20

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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.