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Finding the Fourth Proportional to 18,165.52, 25,070.88 and 11,093.68

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Solution

The fourth proportional to 18,165.52, 25,070.88 and 11,093.68 is: 15,310.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,165.52 : 25,070.88 = 11,093.68 : x
  2. Step 2: Convert to fraction form
    18,165.52/25,070.88 = 11,093.68/x
  3. Step 3: Cross multiply
    18,165.52x = 25,070.88 × 11,093.68
  4. Step 4: Simplify right side
    18,165.52x = 278,128,320.04
  5. Step 5: Solve for x
    x = 278,128,320.04/18,165.52
  6. Step 6: Final answer
    x = 15,310.78

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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.