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Finding the Fourth Proportional to 26,561.55, 39,849.02 and 7,840.83

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Solution

The fourth proportional to 26,561.55, 39,849.02 and 7,840.83 is: 11,763.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,561.55 : 39,849.02 = 7,840.83 : x
  2. Step 2: Convert to fraction form
    26,561.55/39,849.02 = 7,840.83/x
  3. Step 3: Cross multiply
    26,561.55x = 39,849.02 × 7,840.83
  4. Step 4: Simplify right side
    26,561.55x = 312,449,352.28
  5. Step 5: Solve for x
    x = 312,449,352.28/26,561.55
  6. Step 6: Final answer
    x = 11,763.22

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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.