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Finding the Fourth Proportional to 15,321.84, 22,984.09 and 4,228.53

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Solution

The fourth proportional to 15,321.84, 22,984.09 and 4,228.53 is: 6,343.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,321.84 : 22,984.09 = 4,228.53 : x
  2. Step 2: Convert to fraction form
    15,321.84/22,984.09 = 4,228.53/x
  3. Step 3: Cross multiply
    15,321.84x = 22,984.09 × 4,228.53
  4. Step 4: Simplify right side
    15,321.84x = 97,188,914.09
  5. Step 5: Solve for x
    x = 97,188,914.09/15,321.84
  6. Step 6: Final answer
    x = 6,343.16

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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.