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Finding the Fourth Proportional to 13,473.75, 18,593.78 and 7,884.75

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Solution

The fourth proportional to 13,473.75, 18,593.78 and 7,884.75 is: 10,880.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,473.75 : 18,593.78 = 7,884.75 : x
  2. Step 2: Convert to fraction form
    13,473.75/18,593.78 = 7,884.75/x
  3. Step 3: Cross multiply
    13,473.75x = 18,593.78 × 7,884.75
  4. Step 4: Simplify right side
    13,473.75x = 146,607,267.43
  5. Step 5: Solve for x
    x = 146,607,267.43/13,473.75
  6. Step 6: Final answer
    x = 10,880.96

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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.