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Finding the Fourth Proportional to 48,993.12, 73,491.84 and 13,934.88

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Solution

The fourth proportional to 48,993.12, 73,491.84 and 13,934.88 is: 20,902.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,993.12 : 73,491.84 = 13,934.88 : x
  2. Step 2: Convert to fraction form
    48,993.12/73,491.84 = 13,934.88/x
  3. Step 3: Cross multiply
    48,993.12x = 73,491.84 × 13,934.88
  4. Step 4: Simplify right side
    48,993.12x = 1,024,099,971.38
  5. Step 5: Solve for x
    x = 1,024,099,971.38/48,993.12
  6. Step 6: Final answer
    x = 20,902.93

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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.