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Finding the Fourth Proportional to 13,441.56, 18,550.56 and 7,473.12

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Solution

The fourth proportional to 13,441.56, 18,550.56 and 7,473.12 is: 10,313.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.56 : 18,550.56 = 7,473.12 : x
  2. Step 2: Convert to fraction form
    13,441.56/18,550.56 = 7,473.12/x
  3. Step 3: Cross multiply
    13,441.56x = 18,550.56 × 7,473.12
  4. Step 4: Simplify right side
    13,441.56x = 138,630,560.95
  5. Step 5: Solve for x
    x = 138,630,560.95/13,441.56
  6. Step 6: Final answer
    x = 10,313.58

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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.