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Finding the Fourth Proportional to 12,663.43, 17,471.97 and 7,285.58

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Solution

The fourth proportional to 12,663.43, 17,471.97 and 7,285.58 is: 10,052.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,663.43 : 17,471.97 = 7,285.58 : x
  2. Step 2: Convert to fraction form
    12,663.43/17,471.97 = 7,285.58/x
  3. Step 3: Cross multiply
    12,663.43x = 17,471.97 × 7,285.58
  4. Step 4: Simplify right side
    12,663.43x = 127,293,435.19
  5. Step 5: Solve for x
    x = 127,293,435.19/12,663.43
  6. Step 6: Final answer
    x = 10,052.05

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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.