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Finding the Fourth Proportional to 19,129.44, 26,399.20 and 10,632

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Solution

The fourth proportional to 19,129.44, 26,399.20 and 10,632 is: 14,672.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,129.44 : 26,399.20 = 10,632 : x
  2. Step 2: Convert to fraction form
    19,129.44/26,399.20 = 10,632/x
  3. Step 3: Cross multiply
    19,129.44x = 26,399.20 × 10,632
  4. Step 4: Simplify right side
    19,129.44x = 280,676,294.40
  5. Step 5: Solve for x
    x = 280,676,294.40/19,129.44
  6. Step 6: Final answer
    x = 14,672.48

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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.