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Finding the Fourth Proportional to 18,591.60, 25,656.30 and 10,093.90

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Solution

The fourth proportional to 18,591.60, 25,656.30 and 10,093.90 is: 13,929.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,591.60 : 25,656.30 = 10,093.90 : x
  2. Step 2: Convert to fraction form
    18,591.60/25,656.30 = 10,093.90/x
  3. Step 3: Cross multiply
    18,591.60x = 25,656.30 × 10,093.90
  4. Step 4: Simplify right side
    18,591.60x = 258,972,126.57
  5. Step 5: Solve for x
    x = 258,972,126.57/18,591.60
  6. Step 6: Final answer
    x = 13,929.52

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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.