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Finding the Fourth Proportional to 25,707.60, 38,496.60 and 16,894.80

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Solution

The fourth proportional to 25,707.60, 38,496.60 and 16,894.80 is: 25,299.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,707.60 : 38,496.60 = 16,894.80 : x
  2. Step 2: Convert to fraction form
    25,707.60/38,496.60 = 16,894.80/x
  3. Step 3: Cross multiply
    25,707.60x = 38,496.60 × 16,894.80
  4. Step 4: Simplify right side
    25,707.60x = 650,392,357.68
  5. Step 5: Solve for x
    x = 650,392,357.68/25,707.60
  6. Step 6: Final answer
    x = 25,299.61

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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.