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Finding the Fourth Proportional to 11,587,961.20, 16,256,738 and 11,587,961.20

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Solution

The fourth proportional to 11,587,961.20, 16,256,738 and 11,587,961.20 is: 16,256,738

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,587,961.20 : 16,256,738 = 11,587,961.20 : x
  2. Step 2: Convert to fraction form
    11,587,961.20/16,256,738 = 11,587,961.20/x
  3. Step 3: Cross multiply
    11,587,961.20x = 16,256,738 × 11,587,961.20
  4. Step 4: Simplify right side
    11,587,961.20x = 188,382,449,182,565.59
  5. Step 5: Solve for x
    x = 188,382,449,182,565.59/11,587,961.20
  6. Step 6: Final answer
    x = 16,256,738

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.