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Finding the Fourth Proportional to 48,518.93, 72,760.21 and 16,920.90

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Solution

The fourth proportional to 48,518.93, 72,760.21 and 16,920.90 is: 25,375.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,518.93 : 72,760.21 = 16,920.90 : x
  2. Step 2: Convert to fraction form
    48,518.93/72,760.21 = 16,920.90/x
  3. Step 3: Cross multiply
    48,518.93x = 72,760.21 × 16,920.90
  4. Step 4: Simplify right side
    48,518.93x = 1,231,168,195.09
  5. Step 5: Solve for x
    x = 1,231,168,195.09/48,518.93
  6. Step 6: Final answer
    x = 25,375.01

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1.5x scale

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.