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Finding the Fourth Proportional to 12,243.52, 16,893.06 and 7,207.96

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Solution

The fourth proportional to 12,243.52, 16,893.06 and 7,207.96 is: 9,945.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,243.52 : 16,893.06 = 7,207.96 : x
  2. Step 2: Convert to fraction form
    12,243.52/16,893.06 = 7,207.96/x
  3. Step 3: Cross multiply
    12,243.52x = 16,893.06 × 7,207.96
  4. Step 4: Simplify right side
    12,243.52x = 121,764,500.76
  5. Step 5: Solve for x
    x = 121,764,500.76/12,243.52
  6. Step 6: Final answer
    x = 9,945.22

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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.