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Finding the Fourth Proportional to 63,542.34, 87,678.77 and 36,313.79

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Solution

The fourth proportional to 63,542.34, 87,678.77 and 36,313.79 is: 50,107.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,542.34 : 87,678.77 = 36,313.79 : x
  2. Step 2: Convert to fraction form
    63,542.34/87,678.77 = 36,313.79/x
  3. Step 3: Cross multiply
    63,542.34x = 87,678.77 × 36,313.79
  4. Step 4: Simplify right side
    63,542.34x = 3,183,947,821.28
  5. Step 5: Solve for x
    x = 3,183,947,821.28/63,542.34
  6. Step 6: Final answer
    x = 50,107.50

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1.5x scale

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.