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Finding the Fourth Proportional to 12,852.01, 17,745.83 and 9,863.11

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Solution

The fourth proportional to 12,852.01, 17,745.83 and 9,863.11 is: 13,618.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,852.01 : 17,745.83 = 9,863.11 : x
  2. Step 2: Convert to fraction form
    12,852.01/17,745.83 = 9,863.11/x
  3. Step 3: Cross multiply
    12,852.01x = 17,745.83 × 9,863.11
  4. Step 4: Simplify right side
    12,852.01x = 175,029,073.33
  5. Step 5: Solve for x
    x = 175,029,073.33/12,852.01
  6. Step 6: Final answer
    x = 13,618.81

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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.