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Finding the Fourth Proportional to 10,446.56, 15,670.26 and 2,655.57

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Solution

The fourth proportional to 10,446.56, 15,670.26 and 2,655.57 is: 3,983.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,446.56 : 15,670.26 = 2,655.57 : x
  2. Step 2: Convert to fraction form
    10,446.56/15,670.26 = 2,655.57/x
  3. Step 3: Cross multiply
    10,446.56x = 15,670.26 × 2,655.57
  4. Step 4: Simplify right side
    10,446.56x = 41,613,472.35
  5. Step 5: Solve for x
    x = 41,613,472.35/10,446.56
  6. Step 6: Final answer
    x = 3,983.46

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.