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Finding the Fourth Proportional to 21,881.73, 32,821.01 and 8,552.24

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Solution

The fourth proportional to 21,881.73, 32,821.01 and 8,552.24 is: 12,827.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,881.73 : 32,821.01 = 8,552.24 : x
  2. Step 2: Convert to fraction form
    21,881.73/32,821.01 = 8,552.24/x
  3. Step 3: Cross multiply
    21,881.73x = 32,821.01 × 8,552.24
  4. Step 4: Simplify right side
    21,881.73x = 280,692,947.70
  5. Step 5: Solve for x
    x = 280,692,947.70/21,881.73
  6. Step 6: Final answer
    x = 12,827.73

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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.