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Finding the Fourth Proportional to 11,167.63, 15,411.32 and 6,199.63

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Solution

The fourth proportional to 11,167.63, 15,411.32 and 6,199.63 is: 8,555.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,167.63 : 15,411.32 = 6,199.63 : x
  2. Step 2: Convert to fraction form
    11,167.63/15,411.32 = 6,199.63/x
  3. Step 3: Cross multiply
    11,167.63x = 15,411.32 × 6,199.63
  4. Step 4: Simplify right side
    11,167.63x = 95,544,481.81
  5. Step 5: Solve for x
    x = 95,544,481.81/11,167.63
  6. Step 6: Final answer
    x = 8,555.48

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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.