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Finding the Fourth Proportional to 7,190.72, 10,786.04 and 5,732.72

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Solution

The fourth proportional to 7,190.72, 10,786.04 and 5,732.72 is: 8,599.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190.72 : 10,786.04 = 5,732.72 : x
  2. Step 2: Convert to fraction form
    7,190.72/10,786.04 = 5,732.72/x
  3. Step 3: Cross multiply
    7,190.72x = 10,786.04 × 5,732.72
  4. Step 4: Simplify right side
    7,190.72x = 61,833,347.23
  5. Step 5: Solve for x
    x = 61,833,347.23/7,190.72
  6. Step 6: Final answer
    x = 8,599.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.