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Finding the Fourth Proportional to 7,224.02, 10,815.51 and 4,751.39

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Solution

The fourth proportional to 7,224.02, 10,815.51 and 4,751.39 is: 7,113.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,224.02 : 10,815.51 = 4,751.39 : x
  2. Step 2: Convert to fraction form
    7,224.02/10,815.51 = 4,751.39/x
  3. Step 3: Cross multiply
    7,224.02x = 10,815.51 × 4,751.39
  4. Step 4: Simplify right side
    7,224.02x = 51,388,706.06
  5. Step 5: Solve for x
    x = 51,388,706.06/7,224.02
  6. Step 6: Final answer
    x = 7,113.59

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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.