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Finding the Fourth Proportional to 5,271.85, 7,905.04 and 2,636.52

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Solution

The fourth proportional to 5,271.85, 7,905.04 and 2,636.52 is: 3,953.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.85 : 7,905.04 = 2,636.52 : x
  2. Step 2: Convert to fraction form
    5,271.85/7,905.04 = 2,636.52/x
  3. Step 3: Cross multiply
    5,271.85x = 7,905.04 × 2,636.52
  4. Step 4: Simplify right side
    5,271.85x = 20,841,796.06
  5. Step 5: Solve for x
    x = 20,841,796.06/5,271.85
  6. Step 6: Final answer
    x = 3,953.41

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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.