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Finding the Fourth Proportional to 62,289.70, 93,434.50 and 20,736.70

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Solution

The fourth proportional to 62,289.70, 93,434.50 and 20,736.70 is: 31,105.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,289.70 : 93,434.50 = 20,736.70 : x
  2. Step 2: Convert to fraction form
    62,289.70/93,434.50 = 20,736.70/x
  3. Step 3: Cross multiply
    62,289.70x = 93,434.50 × 20,736.70
  4. Step 4: Simplify right side
    62,289.70x = 1,937,523,196.15
  5. Step 5: Solve for x
    x = 1,937,523,196.15/62,289.70
  6. Step 6: Final answer
    x = 31,105.03

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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.