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Finding the Fourth Proportional to 73,740.64, 110,611.32 and 18,336.64

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Solution

The fourth proportional to 73,740.64, 110,611.32 and 18,336.64 is: 27,505.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,740.64 : 110,611.32 = 18,336.64 : x
  2. Step 2: Convert to fraction form
    73,740.64/110,611.32 = 18,336.64/x
  3. Step 3: Cross multiply
    73,740.64x = 110,611.32 × 18,336.64
  4. Step 4: Simplify right side
    73,740.64x = 2,028,239,954.76
  5. Step 5: Solve for x
    x = 2,028,239,954.76/73,740.64
  6. Step 6: Final answer
    x = 27,505.05

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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.