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Finding the Fourth Proportional to 71,573.22, 107,363.58 and 21,652.05

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Solution

The fourth proportional to 71,573.22, 107,363.58 and 21,652.05 is: 32,479.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,573.22 : 107,363.58 = 21,652.05 : x
  2. Step 2: Convert to fraction form
    71,573.22/107,363.58 = 21,652.05/x
  3. Step 3: Cross multiply
    71,573.22x = 107,363.58 × 21,652.05
  4. Step 4: Simplify right side
    71,573.22x = 2,324,641,602.34
  5. Step 5: Solve for x
    x = 2,324,641,602.34/71,573.22
  6. Step 6: Final answer
    x = 32,479.21

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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.