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Finding the Fourth Proportional to 11,757.51, 16,224.72 and 6,451.91

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Solution

The fourth proportional to 11,757.51, 16,224.72 and 6,451.91 is: 8,903.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,757.51 : 16,224.72 = 6,451.91 : x
  2. Step 2: Convert to fraction form
    11,757.51/16,224.72 = 6,451.91/x
  3. Step 3: Cross multiply
    11,757.51x = 16,224.72 × 6,451.91
  4. Step 4: Simplify right side
    11,757.51x = 104,680,433.22
  5. Step 5: Solve for x
    x = 104,680,433.22/11,757.51
  6. Step 6: Final answer
    x = 8,903.28

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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.