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Finding the Fourth Proportional to 49,323.70, 73,945.05 and 21,265.30

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Solution

The fourth proportional to 49,323.70, 73,945.05 and 21,265.30 is: 31,880.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,323.70 : 73,945.05 = 21,265.30 : x
  2. Step 2: Convert to fraction form
    49,323.70/73,945.05 = 21,265.30/x
  3. Step 3: Cross multiply
    49,323.70x = 73,945.05 × 21,265.30
  4. Step 4: Simplify right side
    49,323.70x = 1,572,463,671.77
  5. Step 5: Solve for x
    x = 1,572,463,671.77/49,323.70
  6. Step 6: Final answer
    x = 31,880.49

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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.