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Finding the Fourth Proportional to 32,390.64, 48,630.74 and 22,371.90

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Solution

The fourth proportional to 32,390.64, 48,630.74 and 22,371.90 is: 33,588.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,390.64 : 48,630.74 = 22,371.90 : x
  2. Step 2: Convert to fraction form
    32,390.64/48,630.74 = 22,371.90/x
  3. Step 3: Cross multiply
    32,390.64x = 48,630.74 × 22,371.90
  4. Step 4: Simplify right side
    32,390.64x = 1,087,962,052.21
  5. Step 5: Solve for x
    x = 1,087,962,052.21/32,390.64
  6. Step 6: Final answer
    x = 33,588.78

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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.