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Finding the Fourth Proportional to 56,489.57, 84,734.84 and 14,369.69

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Solution

The fourth proportional to 56,489.57, 84,734.84 and 14,369.69 is: 21,554.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,489.57 : 84,734.84 = 14,369.69 : x
  2. Step 2: Convert to fraction form
    56,489.57/84,734.84 = 14,369.69/x
  3. Step 3: Cross multiply
    56,489.57x = 84,734.84 × 14,369.69
  4. Step 4: Simplify right side
    56,489.57x = 1,217,613,172.25
  5. Step 5: Solve for x
    x = 1,217,613,172.25/56,489.57
  6. Step 6: Final answer
    x = 21,554.66

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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.