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Finding the Fourth Proportional to 58,563.36, 87,640.74 and 47,910.24

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Solution

The fourth proportional to 58,563.36, 87,640.74 and 47,910.24 is: 71,698.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,563.36 : 87,640.74 = 47,910.24 : x
  2. Step 2: Convert to fraction form
    58,563.36/87,640.74 = 47,910.24/x
  3. Step 3: Cross multiply
    58,563.36x = 87,640.74 × 47,910.24
  4. Step 4: Simplify right side
    58,563.36x = 4,198,888,887.18
  5. Step 5: Solve for x
    x = 4,198,888,887.18/58,563.36
  6. Step 6: Final answer
    x = 71,698.22

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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.