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Finding the Fourth Proportional to 20,063.64, 27,687.62 and 11,562.63

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Solution

The fourth proportional to 20,063.64, 27,687.62 and 11,562.63 is: 15,956.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,063.64 : 27,687.62 = 11,562.63 : x
  2. Step 2: Convert to fraction form
    20,063.64/27,687.62 = 11,562.63/x
  3. Step 3: Cross multiply
    20,063.64x = 27,687.62 × 11,562.63
  4. Step 4: Simplify right side
    20,063.64x = 320,141,705.64
  5. Step 5: Solve for x
    x = 320,141,705.64/20,063.64
  6. Step 6: Final answer
    x = 15,956.31

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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.