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Finding the Fourth Proportional to 12,459.44, 17,208.90 and 9,096.86

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Solution

The fourth proportional to 12,459.44, 17,208.90 and 9,096.86 is: 12,564.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459.44 : 17,208.90 = 9,096.86 : x
  2. Step 2: Convert to fraction form
    12,459.44/17,208.90 = 9,096.86/x
  3. Step 3: Cross multiply
    12,459.44x = 17,208.90 × 9,096.86
  4. Step 4: Simplify right side
    12,459.44x = 156,546,954.05
  5. Step 5: Solve for x
    x = 156,546,954.05/12,459.44
  6. Step 6: Final answer
    x = 12,564.53

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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.