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Finding the Fourth Proportional to 57,900.60, 86,850.90 and 26,718.84

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Solution

The fourth proportional to 57,900.60, 86,850.90 and 26,718.84 is: 40,078.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,900.60 : 86,850.90 = 26,718.84 : x
  2. Step 2: Convert to fraction form
    57,900.60/86,850.90 = 26,718.84/x
  3. Step 3: Cross multiply
    57,900.60x = 86,850.90 × 26,718.84
  4. Step 4: Simplify right side
    57,900.60x = 2,320,555,300.96
  5. Step 5: Solve for x
    x = 2,320,555,300.96/57,900.60
  6. Step 6: Final answer
    x = 40,078.26

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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.