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Finding the Fourth Proportional to 26,157.79, 39,184.08 and 12,098.08

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Solution

The fourth proportional to 26,157.79, 39,184.08 and 12,098.08 is: 18,122.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,157.79 : 39,184.08 = 12,098.08 : x
  2. Step 2: Convert to fraction form
    26,157.79/39,184.08 = 12,098.08/x
  3. Step 3: Cross multiply
    26,157.79x = 39,184.08 × 12,098.08
  4. Step 4: Simplify right side
    26,157.79x = 474,052,134.57
  5. Step 5: Solve for x
    x = 474,052,134.57/26,157.79
  6. Step 6: Final answer
    x = 18,122.79

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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.