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Finding the Fourth Proportional to 51,205.70, 76,808.48 and 14,269.70

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Solution

The fourth proportional to 51,205.70, 76,808.48 and 14,269.70 is: 21,404.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,205.70 : 76,808.48 = 14,269.70 : x
  2. Step 2: Convert to fraction form
    51,205.70/76,808.48 = 14,269.70/x
  3. Step 3: Cross multiply
    51,205.70x = 76,808.48 × 14,269.70
  4. Step 4: Simplify right side
    51,205.70x = 1,096,034,087.73
  5. Step 5: Solve for x
    x = 1,096,034,087.73/51,205.70
  6. Step 6: Final answer
    x = 21,404.53

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1.5x scale

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.