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Finding the Fourth Proportional to 12,201.11, 16,837.51 and 6,612.11

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Solution

The fourth proportional to 12,201.11, 16,837.51 and 6,612.11 is: 9,124.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,201.11 : 16,837.51 = 6,612.11 : x
  2. Step 2: Convert to fraction form
    12,201.11/16,837.51 = 6,612.11/x
  3. Step 3: Cross multiply
    12,201.11x = 16,837.51 × 6,612.11
  4. Step 4: Simplify right side
    12,201.11x = 111,331,468.25
  5. Step 5: Solve for x
    x = 111,331,468.25/12,201.11
  6. Step 6: Final answer
    x = 9,124.70

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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.