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Finding the Fourth Proportional to 12,866.08, 17,754.96 and 7,276.96

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Solution

The fourth proportional to 12,866.08, 17,754.96 and 7,276.96 is: 10,042.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,866.08 : 17,754.96 = 7,276.96 : x
  2. Step 2: Convert to fraction form
    12,866.08/17,754.96 = 7,276.96/x
  3. Step 3: Cross multiply
    12,866.08x = 17,754.96 × 7,276.96
  4. Step 4: Simplify right side
    12,866.08x = 129,202,133.72
  5. Step 5: Solve for x
    x = 129,202,133.72/12,866.08
  6. Step 6: Final answer
    x = 10,042.07

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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.