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Finding the Fourth Proportional to 26,105.35, 39,105.35 and 12,045.84

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Solution

The fourth proportional to 26,105.35, 39,105.35 and 12,045.84 is: 18,044.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,105.35 : 39,105.35 = 12,045.84 : x
  2. Step 2: Convert to fraction form
    26,105.35/39,105.35 = 12,045.84/x
  3. Step 3: Cross multiply
    26,105.35x = 39,105.35 × 12,045.84
  4. Step 4: Simplify right side
    26,105.35x = 471,056,924.78
  5. Step 5: Solve for x
    x = 471,056,924.78/26,105.35
  6. Step 6: Final answer
    x = 18,044.46

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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.