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Finding the Fourth Proportional to 12,801.66, 17,672.22 and 9,027.90

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Solution

The fourth proportional to 12,801.66, 17,672.22 and 9,027.90 is: 12,462.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,801.66 : 17,672.22 = 9,027.90 : x
  2. Step 2: Convert to fraction form
    12,801.66/17,672.22 = 9,027.90/x
  3. Step 3: Cross multiply
    12,801.66x = 17,672.22 × 9,027.90
  4. Step 4: Simplify right side
    12,801.66x = 159,543,034.94
  5. Step 5: Solve for x
    x = 159,543,034.94/12,801.66
  6. Step 6: Final answer
    x = 12,462.68

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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.