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Finding the Fourth Proportional to 17,188.20, 25,806.60 and 10,627.20

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Solution

The fourth proportional to 17,188.20, 25,806.60 and 10,627.20 is: 15,955.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,188.20 : 25,806.60 = 10,627.20 : x
  2. Step 2: Convert to fraction form
    17,188.20/25,806.60 = 10,627.20/x
  3. Step 3: Cross multiply
    17,188.20x = 25,806.60 × 10,627.20
  4. Step 4: Simplify right side
    17,188.20x = 274,251,899.52
  5. Step 5: Solve for x
    x = 274,251,899.52/17,188.20
  6. Step 6: Final answer
    x = 15,955.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.