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Finding the Fourth Proportional to 73,722.39, 110,583.66 and 18,318.39

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Solution

The fourth proportional to 73,722.39, 110,583.66 and 18,318.39 is: 27,477.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,722.39 : 110,583.66 = 18,318.39 : x
  2. Step 2: Convert to fraction form
    73,722.39/110,583.66 = 18,318.39/x
  3. Step 3: Cross multiply
    73,722.39x = 110,583.66 × 18,318.39
  4. Step 4: Simplify right side
    73,722.39x = 2,025,714,611.51
  5. Step 5: Solve for x
    x = 2,025,714,611.51/73,722.39
  6. Step 6: Final answer
    x = 27,477.60

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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.