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Finding the Fourth Proportional to 11,351.13, 15,664.62 and 6,383.13

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Solution

The fourth proportional to 11,351.13, 15,664.62 and 6,383.13 is: 8,808.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,351.13 : 15,664.62 = 6,383.13 : x
  2. Step 2: Convert to fraction form
    11,351.13/15,664.62 = 6,383.13/x
  3. Step 3: Cross multiply
    11,351.13x = 15,664.62 × 6,383.13
  4. Step 4: Simplify right side
    11,351.13x = 99,989,305.86
  5. Step 5: Solve for x
    x = 99,989,305.86/11,351.13
  6. Step 6: Final answer
    x = 8,808.75

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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.