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Finding the Fourth Proportional to 11,772.32, 16,247.24 and 6,804.32

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Solution

The fourth proportional to 11,772.32, 16,247.24 and 6,804.32 is: 9,390.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,772.32 : 16,247.24 = 6,804.32 : x
  2. Step 2: Convert to fraction form
    11,772.32/16,247.24 = 6,804.32/x
  3. Step 3: Cross multiply
    11,772.32x = 16,247.24 × 6,804.32
  4. Step 4: Simplify right side
    11,772.32x = 110,551,420.08
  5. Step 5: Solve for x
    x = 110,551,420.08/11,772.32
  6. Step 6: Final answer
    x = 9,390.79

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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.