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Finding the Fourth Proportional to 16,272.56, 22,456.08 and 8,820.56

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Solution

The fourth proportional to 16,272.56, 22,456.08 and 8,820.56 is: 12,172.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,272.56 : 22,456.08 = 8,820.56 : x
  2. Step 2: Convert to fraction form
    16,272.56/22,456.08 = 8,820.56/x
  3. Step 3: Cross multiply
    16,272.56x = 22,456.08 × 8,820.56
  4. Step 4: Simplify right side
    16,272.56x = 198,075,201.00
  5. Step 5: Solve for x
    x = 198,075,201.00/16,272.56
  6. Step 6: Final answer
    x = 12,172.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.