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Finding the Fourth Proportional to 56,489.28, 84,734.41 and 14,369.41

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Solution

The fourth proportional to 56,489.28, 84,734.41 and 14,369.41 is: 21,554.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,489.28 : 84,734.41 = 14,369.41 : x
  2. Step 2: Convert to fraction form
    56,489.28/84,734.41 = 14,369.41/x
  3. Step 3: Cross multiply
    56,489.28x = 84,734.41 × 14,369.41
  4. Step 4: Simplify right side
    56,489.28x = 1,217,583,274.78
  5. Step 5: Solve for x
    x = 1,217,583,274.78/56,489.28
  6. Step 6: Final answer
    x = 21,554.23

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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.