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Finding the Fourth Proportional to 13,616.98, 18,790.84 and 7,952.04

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Solution

The fourth proportional to 13,616.98, 18,790.84 and 7,952.04 is: 10,973.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,616.98 : 18,790.84 = 7,952.04 : x
  2. Step 2: Convert to fraction form
    13,616.98/18,790.84 = 7,952.04/x
  3. Step 3: Cross multiply
    13,616.98x = 18,790.84 × 7,952.04
  4. Step 4: Simplify right side
    13,616.98x = 149,425,511.31
  5. Step 5: Solve for x
    x = 149,425,511.31/13,616.98
  6. Step 6: Final answer
    x = 10,973.47

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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.