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Finding the Fourth Proportional to 48,687.42, 73,022.74 and 13,618.74

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Solution

The fourth proportional to 48,687.42, 73,022.74 and 13,618.74 is: 20,425.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,687.42 : 73,022.74 = 13,618.74 : x
  2. Step 2: Convert to fraction form
    48,687.42/73,022.74 = 13,618.74/x
  3. Step 3: Cross multiply
    48,687.42x = 73,022.74 × 13,618.74
  4. Step 4: Simplify right side
    48,687.42x = 994,477,710.15
  5. Step 5: Solve for x
    x = 994,477,710.15/48,687.42
  6. Step 6: Final answer
    x = 20,425.76

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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.