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Finding the Fourth Proportional to 73,722.10, 110,583.15 and 18,318.10

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Solution

The fourth proportional to 73,722.10, 110,583.15 and 18,318.10 is: 27,477.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,722.10 : 110,583.15 = 18,318.10 : x
  2. Step 2: Convert to fraction form
    73,722.10/110,583.15 = 18,318.10/x
  3. Step 3: Cross multiply
    73,722.10x = 110,583.15 × 18,318.10
  4. Step 4: Simplify right side
    73,722.10x = 2,025,673,200.02
  5. Step 5: Solve for x
    x = 2,025,673,200.02/73,722.10
  6. Step 6: Final answer
    x = 27,477.15

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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.