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Finding the Fourth Proportional to 11,747.15, 16,210.95 and 6,441.95

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Solution

The fourth proportional to 11,747.15, 16,210.95 and 6,441.95 is: 8,889.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,747.15 : 16,210.95 = 6,441.95 : x
  2. Step 2: Convert to fraction form
    11,747.15/16,210.95 = 6,441.95/x
  3. Step 3: Cross multiply
    11,747.15x = 16,210.95 × 6,441.95
  4. Step 4: Simplify right side
    11,747.15x = 104,430,129.35
  5. Step 5: Solve for x
    x = 104,430,129.35/11,747.15
  6. Step 6: Final answer
    x = 8,889.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.