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Finding the Fourth Proportional to 4,483.22, 6,724.86 and 1,561.51

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Solution

The fourth proportional to 4,483.22, 6,724.86 and 1,561.51 is: 2,342.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,483.22 : 6,724.86 = 1,561.51 : x
  2. Step 2: Convert to fraction form
    4,483.22/6,724.86 = 1,561.51/x
  3. Step 3: Cross multiply
    4,483.22x = 6,724.86 × 1,561.51
  4. Step 4: Simplify right side
    4,483.22x = 10,500,938.69
  5. Step 5: Solve for x
    x = 10,500,938.69/4,483.22
  6. Step 6: Final answer
    x = 2,342.28

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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.