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Finding the Fourth Proportional to 11,892.32, 16,403.28 and 6,924.32

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Solution

The fourth proportional to 11,892.32, 16,403.28 and 6,924.32 is: 9,550.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,892.32 : 16,403.28 = 6,924.32 : x
  2. Step 2: Convert to fraction form
    11,892.32/16,403.28 = 6,924.32/x
  3. Step 3: Cross multiply
    11,892.32x = 16,403.28 × 6,924.32
  4. Step 4: Simplify right side
    11,892.32x = 113,581,559.77
  5. Step 5: Solve for x
    x = 113,581,559.77/11,892.32
  6. Step 6: Final answer
    x = 9,550.83

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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.