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Finding the Fourth Proportional to 17,990.56, 24,817.68 and 10,719.04

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Solution

The fourth proportional to 17,990.56, 24,817.68 and 10,719.04 is: 14,786.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,990.56 : 24,817.68 = 10,719.04 : x
  2. Step 2: Convert to fraction form
    17,990.56/24,817.68 = 10,719.04/x
  3. Step 3: Cross multiply
    17,990.56x = 24,817.68 × 10,719.04
  4. Step 4: Simplify right side
    17,990.56x = 266,021,704.63
  5. Step 5: Solve for x
    x = 266,021,704.63/17,990.56
  6. Step 6: Final answer
    x = 14,786.74

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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.