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Finding the Fourth Proportional to 25,653.70, 38,480.55 and 25,216.30

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Solution

The fourth proportional to 25,653.70, 38,480.55 and 25,216.30 is: 37,824.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,653.70 : 38,480.55 = 25,216.30 : x
  2. Step 2: Convert to fraction form
    25,653.70/38,480.55 = 25,216.30/x
  3. Step 3: Cross multiply
    25,653.70x = 38,480.55 × 25,216.30
  4. Step 4: Simplify right side
    25,653.70x = 970,337,092.97
  5. Step 5: Solve for x
    x = 970,337,092.97/25,653.70
  6. Step 6: Final answer
    x = 37,824.45

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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.