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Finding the Fourth Proportional to 57,671.55, 86,499.90 and 18,232.65

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Solution

The fourth proportional to 57,671.55, 86,499.90 and 18,232.65 is: 27,346.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,671.55 : 86,499.90 = 18,232.65 : x
  2. Step 2: Convert to fraction form
    57,671.55/86,499.90 = 18,232.65/x
  3. Step 3: Cross multiply
    57,671.55x = 86,499.90 × 18,232.65
  4. Step 4: Simplify right side
    57,671.55x = 1,577,122,401.74
  5. Step 5: Solve for x
    x = 1,577,122,401.74/57,671.55
  6. Step 6: Final answer
    x = 27,346.63

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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.