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Finding the Fourth Proportional to 57,459.74, 86,189.67 and 15,906.74

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Solution

The fourth proportional to 57,459.74, 86,189.67 and 15,906.74 is: 23,860.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,459.74 : 86,189.67 = 15,906.74 : x
  2. Step 2: Convert to fraction form
    57,459.74/86,189.67 = 15,906.74/x
  3. Step 3: Cross multiply
    57,459.74x = 86,189.67 × 15,906.74
  4. Step 4: Simplify right side
    57,459.74x = 1,370,996,240.43
  5. Step 5: Solve for x
    x = 1,370,996,240.43/57,459.74
  6. Step 6: Final answer
    x = 23,860.12

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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.