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Finding the Fourth Proportional to 8,276.52, 11,420.64 and 4,739.52

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Solution

The fourth proportional to 8,276.52, 11,420.64 and 4,739.52 is: 6,539.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,276.52 : 11,420.64 = 4,739.52 : x
  2. Step 2: Convert to fraction form
    8,276.52/11,420.64 = 4,739.52/x
  3. Step 3: Cross multiply
    8,276.52x = 11,420.64 × 4,739.52
  4. Step 4: Simplify right side
    8,276.52x = 54,128,351.69
  5. Step 5: Solve for x
    x = 54,128,351.69/8,276.52
  6. Step 6: Final answer
    x = 6,539.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.