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Finding the Fourth Proportional to 5,858.72, 8,786.64 and 1,754.72

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Solution

The fourth proportional to 5,858.72, 8,786.64 and 1,754.72 is: 2,631.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,858.72 : 8,786.64 = 1,754.72 : x
  2. Step 2: Convert to fraction form
    5,858.72/8,786.64 = 1,754.72/x
  3. Step 3: Cross multiply
    5,858.72x = 8,786.64 × 1,754.72
  4. Step 4: Simplify right side
    5,858.72x = 15,418,092.94
  5. Step 5: Solve for x
    x = 15,418,092.94/5,858.72
  6. Step 6: Final answer
    x = 2,631.65

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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.