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Finding the Fourth Proportional to 4,749.62, 7,127.48 and 2,559.87

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Solution

The fourth proportional to 4,749.62, 7,127.48 and 2,559.87 is: 3,841.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,749.62 : 7,127.48 = 2,559.87 : x
  2. Step 2: Convert to fraction form
    4,749.62/7,127.48 = 2,559.87/x
  3. Step 3: Cross multiply
    4,749.62x = 7,127.48 × 2,559.87
  4. Step 4: Simplify right side
    4,749.62x = 18,245,428.63
  5. Step 5: Solve for x
    x = 18,245,428.63/4,749.62
  6. Step 6: Final answer
    x = 3,841.45

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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.