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Finding the Fourth Proportional to 26,691,664.20, 40,037,496.30 and 12,342,757.20

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Solution

The fourth proportional to 26,691,664.20, 40,037,496.30 and 12,342,757.20 is: 18,514,135.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,691,664.20 : 40,037,496.30 = 12,342,757.20 : x
  2. Step 2: Convert to fraction form
    26,691,664.20/40,037,496.30 = 12,342,757.20/x
  3. Step 3: Cross multiply
    26,691,664.20x = 40,037,496.30 × 12,342,757.20
  4. Step 4: Simplify right side
    26,691,664.20x = 494,173,095,726,798.31
  5. Step 5: Solve for x
    x = 494,173,095,726,798.31/26,691,664.20
  6. Step 6: Final answer
    x = 18,514,135.80

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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.