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Finding the Fourth Proportional to 18,183.42, 25,060.50 and 13,459.50

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Solution

The fourth proportional to 18,183.42, 25,060.50 and 13,459.50 is: 18,549.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,183.42 : 25,060.50 = 13,459.50 : x
  2. Step 2: Convert to fraction form
    18,183.42/25,060.50 = 13,459.50/x
  3. Step 3: Cross multiply
    18,183.42x = 25,060.50 × 13,459.50
  4. Step 4: Simplify right side
    18,183.42x = 337,301,799.75
  5. Step 5: Solve for x
    x = 337,301,799.75/18,183.42
  6. Step 6: Final answer
    x = 18,549.96

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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.