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Finding the Fourth Proportional to 48,052.63, 72,078.95 and 21,756.79

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Solution

The fourth proportional to 48,052.63, 72,078.95 and 21,756.79 is: 32,635.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,052.63 : 72,078.95 = 21,756.79 : x
  2. Step 2: Convert to fraction form
    48,052.63/72,078.95 = 21,756.79/x
  3. Step 3: Cross multiply
    48,052.63x = 72,078.95 × 21,756.79
  4. Step 4: Simplify right side
    48,052.63x = 1,568,206,578.57
  5. Step 5: Solve for x
    x = 1,568,206,578.57/48,052.63
  6. Step 6: Final answer
    x = 32,635.19

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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.