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Finding the Fourth Proportional to 14,004.82, 19,326.41 and 7,631.49

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Solution

The fourth proportional to 14,004.82, 19,326.41 and 7,631.49 is: 10,531.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,004.82 : 19,326.41 = 7,631.49 : x
  2. Step 2: Convert to fraction form
    14,004.82/19,326.41 = 7,631.49/x
  3. Step 3: Cross multiply
    14,004.82x = 19,326.41 × 7,631.49
  4. Step 4: Simplify right side
    14,004.82x = 147,489,304.65
  5. Step 5: Solve for x
    x = 147,489,304.65/14,004.82
  6. Step 6: Final answer
    x = 10,531.32

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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.