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Finding the Fourth Proportional to 40,380.80, 60,533.94 and 21,673.94

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Solution

The fourth proportional to 40,380.80, 60,533.94 and 21,673.94 is: 32,490.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,380.80 : 60,533.94 = 21,673.94 : x
  2. Step 2: Convert to fraction form
    40,380.80/60,533.94 = 21,673.94/x
  3. Step 3: Cross multiply
    40,380.80x = 60,533.94 × 21,673.94
  4. Step 4: Simplify right side
    40,380.80x = 1,312,008,983.52
  5. Step 5: Solve for x
    x = 1,312,008,983.52/40,380.80
  6. Step 6: Final answer
    x = 32,490.91

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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.