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Finding the Fourth Proportional to 16,824.60, 25,236.90 and 15,512.40

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Solution

The fourth proportional to 16,824.60, 25,236.90 and 15,512.40 is: 23,268.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,824.60 : 25,236.90 = 15,512.40 : x
  2. Step 2: Convert to fraction form
    16,824.60/25,236.90 = 15,512.40/x
  3. Step 3: Cross multiply
    16,824.60x = 25,236.90 × 15,512.40
  4. Step 4: Simplify right side
    16,824.60x = 391,484,887.56
  5. Step 5: Solve for x
    x = 391,484,887.56/16,824.60
  6. Step 6: Final answer
    x = 23,268.60

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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.