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Finding the Fourth Proportional to 15,647.58, 23,473.98 and 5,786.88

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Solution

The fourth proportional to 15,647.58, 23,473.98 and 5,786.88 is: 8,681.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,647.58 : 23,473.98 = 5,786.88 : x
  2. Step 2: Convert to fraction form
    15,647.58/23,473.98 = 5,786.88/x
  3. Step 3: Cross multiply
    15,647.58x = 23,473.98 × 5,786.88
  4. Step 4: Simplify right side
    15,647.58x = 135,841,105.38
  5. Step 5: Solve for x
    x = 135,841,105.38/15,647.58
  6. Step 6: Final answer
    x = 8,681.29

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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.