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Finding the Fourth Proportional to 44,429.32, 66,653.32 and 12,839.32

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Solution

The fourth proportional to 44,429.32, 66,653.32 and 12,839.32 is: 19,261.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,429.32 : 66,653.32 = 12,839.32 : x
  2. Step 2: Convert to fraction form
    44,429.32/66,653.32 = 12,839.32/x
  3. Step 3: Cross multiply
    44,429.32x = 66,653.32 × 12,839.32
  4. Step 4: Simplify right side
    44,429.32x = 855,783,304.54
  5. Step 5: Solve for x
    x = 855,783,304.54/44,429.32
  6. Step 6: Final answer
    x = 19,261.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.