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Finding the Fourth Proportional to 13,473.68, 18,605.44 and 8,446.56

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Solution

The fourth proportional to 13,473.68, 18,605.44 and 8,446.56 is: 11,663.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,473.68 : 18,605.44 = 8,446.56 : x
  2. Step 2: Convert to fraction form
    13,473.68/18,605.44 = 8,446.56/x
  3. Step 3: Cross multiply
    13,473.68x = 18,605.44 × 8,446.56
  4. Step 4: Simplify right side
    13,473.68x = 157,151,965.29
  5. Step 5: Solve for x
    x = 157,151,965.29/13,473.68
  6. Step 6: Final answer
    x = 11,663.63

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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.