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Finding the Fourth Proportional to 18,591.83, 25,645.04 and 11,032.81

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Solution

The fourth proportional to 18,591.83, 25,645.04 and 11,032.81 is: 15,218.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,591.83 : 25,645.04 = 11,032.81 : x
  2. Step 2: Convert to fraction form
    18,591.83/25,645.04 = 11,032.81/x
  3. Step 3: Cross multiply
    18,591.83x = 25,645.04 × 11,032.81
  4. Step 4: Simplify right side
    18,591.83x = 282,936,775.86
  5. Step 5: Solve for x
    x = 282,936,775.86/18,591.83
  6. Step 6: Final answer
    x = 15,218.34

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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.