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Finding the Fourth Proportional to 64,863.92, 89,508.73 and 36,567.78

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Solution

The fourth proportional to 64,863.92, 89,508.73 and 36,567.78 is: 50,461.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,863.92 : 89,508.73 = 36,567.78 : x
  2. Step 2: Convert to fraction form
    64,863.92/89,508.73 = 36,567.78/x
  3. Step 3: Cross multiply
    64,863.92x = 89,508.73 × 36,567.78
  4. Step 4: Simplify right side
    64,863.92x = 3,273,135,816.20
  5. Step 5: Solve for x
    x = 3,273,135,816.20/64,863.92
  6. Step 6: Final answer
    x = 50,461.58

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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.