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Finding the Fourth Proportional to 14,343.39, 19,793.88 and 7,969.98

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Solution

The fourth proportional to 14,343.39, 19,793.88 and 7,969.98 is: 10,998.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,343.39 : 19,793.88 = 7,969.98 : x
  2. Step 2: Convert to fraction form
    14,343.39/19,793.88 = 7,969.98/x
  3. Step 3: Cross multiply
    14,343.39x = 19,793.88 × 7,969.98
  4. Step 4: Simplify right side
    14,343.39x = 157,756,827.72
  5. Step 5: Solve for x
    x = 157,756,827.72/14,343.39
  6. Step 6: Final answer
    x = 10,998.57

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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.