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Finding the Fourth Proportional to 15,963.50, 23,949.09 and 5,019.50

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Solution

The fourth proportional to 15,963.50, 23,949.09 and 5,019.50 is: 7,530.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,963.50 : 23,949.09 = 5,019.50 : x
  2. Step 2: Convert to fraction form
    15,963.50/23,949.09 = 5,019.50/x
  3. Step 3: Cross multiply
    15,963.50x = 23,949.09 × 5,019.50
  4. Step 4: Simplify right side
    15,963.50x = 120,212,457.26
  5. Step 5: Solve for x
    x = 120,212,457.26/15,963.50
  6. Step 6: Final answer
    x = 7,530.46

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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.