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Finding the Fourth Proportional to 52,913.45, 73,020.18 and 28,713.89

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Solution

The fourth proportional to 52,913.45, 73,020.18 and 28,713.89 is: 39,624.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,913.45 : 73,020.18 = 28,713.89 : x
  2. Step 2: Convert to fraction form
    52,913.45/73,020.18 = 28,713.89/x
  3. Step 3: Cross multiply
    52,913.45x = 73,020.18 × 28,713.89
  4. Step 4: Simplify right side
    52,913.45x = 2,096,693,706.53
  5. Step 5: Solve for x
    x = 2,096,693,706.53/52,913.45
  6. Step 6: Final answer
    x = 39,624.97

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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.