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Finding the Fourth Proportional to 14,344.56, 19,794.80 and 7,971.56

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Solution

The fourth proportional to 14,344.56, 19,794.80 and 7,971.56 is: 11,000.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,344.56 : 19,794.80 = 7,971.56 : x
  2. Step 2: Convert to fraction form
    14,344.56/19,794.80 = 7,971.56/x
  3. Step 3: Cross multiply
    14,344.56x = 19,794.80 × 7,971.56
  4. Step 4: Simplify right side
    14,344.56x = 157,795,435.89
  5. Step 5: Solve for x
    x = 157,795,435.89/14,344.56
  6. Step 6: Final answer
    x = 11,000.37

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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.