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Finding the Fourth Proportional to 25,611.90, 38,331.45 and 25,611.90

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Solution

The fourth proportional to 25,611.90, 38,331.45 and 25,611.90 is: 38,331.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,611.90 : 38,331.45 = 25,611.90 : x
  2. Step 2: Convert to fraction form
    25,611.90/38,331.45 = 25,611.90/x
  3. Step 3: Cross multiply
    25,611.90x = 38,331.45 × 25,611.90
  4. Step 4: Simplify right side
    25,611.90x = 981,741,264.26
  5. Step 5: Solve for x
    x = 981,741,264.26/25,611.90
  6. Step 6: Final answer
    x = 38,331.45

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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.