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Finding the Fourth Proportional to 14,672.98, 20,248.54 and 7,958.49

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Solution

The fourth proportional to 14,672.98, 20,248.54 and 7,958.49 is: 10,982.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,672.98 : 20,248.54 = 7,958.49 : x
  2. Step 2: Convert to fraction form
    14,672.98/20,248.54 = 7,958.49/x
  3. Step 3: Cross multiply
    14,672.98x = 20,248.54 × 7,958.49
  4. Step 4: Simplify right side
    14,672.98x = 161,147,803.10
  5. Step 5: Solve for x
    x = 161,147,803.10/14,672.98
  6. Step 6: Final answer
    x = 10,982.62

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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.