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Finding the Fourth Proportional to 25,854.36, 38,679.54 and 25,664.88

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Solution

The fourth proportional to 25,854.36, 38,679.54 and 25,664.88 is: 38,396.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,854.36 : 38,679.54 = 25,664.88 : x
  2. Step 2: Convert to fraction form
    25,854.36/38,679.54 = 25,664.88/x
  3. Step 3: Cross multiply
    25,854.36x = 38,679.54 × 25,664.88
  4. Step 4: Simplify right side
    25,854.36x = 992,705,752.56
  5. Step 5: Solve for x
    x = 992,705,752.56/25,854.36
  6. Step 6: Final answer
    x = 38,396.07

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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.