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Finding the Fourth Proportional to 25,331.82, 37,978.29 and 15,473.58

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Solution

The fourth proportional to 25,331.82, 37,978.29 and 15,473.58 is: 23,198.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,331.82 : 37,978.29 = 15,473.58 : x
  2. Step 2: Convert to fraction form
    25,331.82/37,978.29 = 15,473.58/x
  3. Step 3: Cross multiply
    25,331.82x = 37,978.29 × 15,473.58
  4. Step 4: Simplify right side
    25,331.82x = 587,660,108.58
  5. Step 5: Solve for x
    x = 587,660,108.58/25,331.82
  6. Step 6: Final answer
    x = 23,198.50

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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.