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Finding the Fourth Proportional to 10,446.56, 15,663.68 and 6,938.48

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Solution

The fourth proportional to 10,446.56, 15,663.68 and 6,938.48 is: 10,403.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,446.56 : 15,663.68 = 6,938.48 : x
  2. Step 2: Convert to fraction form
    10,446.56/15,663.68 = 6,938.48/x
  3. Step 3: Cross multiply
    10,446.56x = 15,663.68 × 6,938.48
  4. Step 4: Simplify right side
    10,446.56x = 108,682,130.41
  5. Step 5: Solve for x
    x = 108,682,130.41/10,446.56
  6. Step 6: Final answer
    x = 10,403.63

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Why These Related Problems?

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