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Finding the Fourth Proportional to 14,996.88, 20,696.40 and 8,282.88

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Solution

The fourth proportional to 14,996.88, 20,696.40 and 8,282.88 is: 11,430.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,996.88 : 20,696.40 = 8,282.88 : x
  2. Step 2: Convert to fraction form
    14,996.88/20,696.40 = 8,282.88/x
  3. Step 3: Cross multiply
    14,996.88x = 20,696.40 × 8,282.88
  4. Step 4: Simplify right side
    14,996.88x = 171,425,797.63
  5. Step 5: Solve for x
    x = 171,425,797.63/14,996.88
  6. Step 6: Final answer
    x = 11,430.76

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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.