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Finding the Fourth Proportional to 53,912.70, 80,854.65 and 16,472.70

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Solution

The fourth proportional to 53,912.70, 80,854.65 and 16,472.70 is: 24,704.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,912.70 : 80,854.65 = 16,472.70 : x
  2. Step 2: Convert to fraction form
    53,912.70/80,854.65 = 16,472.70/x
  3. Step 3: Cross multiply
    53,912.70x = 80,854.65 × 16,472.70
  4. Step 4: Simplify right side
    53,912.70x = 1,331,894,393.06
  5. Step 5: Solve for x
    x = 1,331,894,393.06/53,912.70
  6. Step 6: Final answer
    x = 24,704.65

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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.