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Finding the Fourth Proportional to 7,656.52, 11,485.98 and 3,274

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Solution

The fourth proportional to 7,656.52, 11,485.98 and 3,274 is: 4,911.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,656.52 : 11,485.98 = 3,274 : x
  2. Step 2: Convert to fraction form
    7,656.52/11,485.98 = 3,274/x
  3. Step 3: Cross multiply
    7,656.52x = 11,485.98 × 3,274
  4. Step 4: Simplify right side
    7,656.52x = 37,605,098.52
  5. Step 5: Solve for x
    x = 37,605,098.52/7,656.52
  6. Step 6: Final answer
    x = 4,911.51

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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.