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Finding the Fourth Proportional to 12,481.52, 17,223.72 and 6,892.64

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Solution

The fourth proportional to 12,481.52, 17,223.72 and 6,892.64 is: 9,511.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481.52 : 17,223.72 = 6,892.64 : x
  2. Step 2: Convert to fraction form
    12,481.52/17,223.72 = 6,892.64/x
  3. Step 3: Cross multiply
    12,481.52x = 17,223.72 × 6,892.64
  4. Step 4: Simplify right side
    12,481.52x = 118,716,901.42
  5. Step 5: Solve for x
    x = 118,716,901.42/12,481.52
  6. Step 6: Final answer
    x = 9,511.41

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1.5x scale

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.