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Finding the Fourth Proportional to 17,258.40, 25,892.40 and 8,493.60

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Solution

The fourth proportional to 17,258.40, 25,892.40 and 8,493.60 is: 12,742.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,258.40 : 25,892.40 = 8,493.60 : x
  2. Step 2: Convert to fraction form
    17,258.40/25,892.40 = 8,493.60/x
  3. Step 3: Cross multiply
    17,258.40x = 25,892.40 × 8,493.60
  4. Step 4: Simplify right side
    17,258.40x = 219,919,688.64
  5. Step 5: Solve for x
    x = 219,919,688.64/17,258.40
  6. Step 6: Final answer
    x = 12,742.76

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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.