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Finding the Fourth Proportional to 73,633.49, 110,436.13 and 20,312.20

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Solution

The fourth proportional to 73,633.49, 110,436.13 and 20,312.20 is: 30,464.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,633.49 : 110,436.13 = 20,312.20 : x
  2. Step 2: Convert to fraction form
    73,633.49/110,436.13 = 20,312.20/x
  3. Step 3: Cross multiply
    73,633.49x = 110,436.13 × 20,312.20
  4. Step 4: Simplify right side
    73,633.49x = 2,243,200,923.22
  5. Step 5: Solve for x
    x = 2,243,200,923.22/73,633.49
  6. Step 6: Final answer
    x = 30,464.41

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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.