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Finding the Fourth Proportional to 14,699.80, 20,274.54 and 10,170.02

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Solution

The fourth proportional to 14,699.80, 20,274.54 and 10,170.02 is: 14,026.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,699.80 : 20,274.54 = 10,170.02 : x
  2. Step 2: Convert to fraction form
    14,699.80/20,274.54 = 10,170.02/x
  3. Step 3: Cross multiply
    14,699.80x = 20,274.54 × 10,170.02
  4. Step 4: Simplify right side
    14,699.80x = 206,192,527.98
  5. Step 5: Solve for x
    x = 206,192,527.98/14,699.80
  6. Step 6: Final answer
    x = 14,026.90

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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.