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Finding the Fourth Proportional to 22,615.12, 33,917.28 and 8,576.47

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Solution

The fourth proportional to 22,615.12, 33,917.28 and 8,576.47 is: 12,862.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,615.12 : 33,917.28 = 8,576.47 : x
  2. Step 2: Convert to fraction form
    22,615.12/33,917.28 = 8,576.47/x
  3. Step 3: Cross multiply
    22,615.12x = 33,917.28 × 8,576.47
  4. Step 4: Simplify right side
    22,615.12x = 290,890,534.40
  5. Step 5: Solve for x
    x = 290,890,534.40/22,615.12
  6. Step 6: Final answer
    x = 12,862.66

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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.