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Finding the Fourth Proportional to 48,606.76, 72,920.31 and 20,526.88

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Solution

The fourth proportional to 48,606.76, 72,920.31 and 20,526.88 is: 30,794.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,606.76 : 72,920.31 = 20,526.88 : x
  2. Step 2: Convert to fraction form
    48,606.76/72,920.31 = 20,526.88/x
  3. Step 3: Cross multiply
    48,606.76x = 72,920.31 × 20,526.88
  4. Step 4: Simplify right side
    48,606.76x = 1,496,826,452.93
  5. Step 5: Solve for x
    x = 1,496,826,452.93/48,606.76
  6. Step 6: Final answer
    x = 30,794.61

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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.