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Finding the Fourth Proportional to 73,820.55, 110,731.21 and 18,416.55

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Solution

The fourth proportional to 73,820.55, 110,731.21 and 18,416.55 is: 27,624.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,820.55 : 110,731.21 = 18,416.55 : x
  2. Step 2: Convert to fraction form
    73,820.55/110,731.21 = 18,416.55/x
  3. Step 3: Cross multiply
    73,820.55x = 110,731.21 × 18,416.55
  4. Step 4: Simplify right side
    73,820.55x = 2,039,286,773.44
  5. Step 5: Solve for x
    x = 2,039,286,773.44/73,820.55
  6. Step 6: Final answer
    x = 27,624.92

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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.