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Finding the Fourth Proportional to 25,956.54, 38,978.55 and 25,752.42

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Solution

The fourth proportional to 25,956.54, 38,978.55 and 25,752.42 is: 38,672.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,956.54 : 38,978.55 = 25,752.42 : x
  2. Step 2: Convert to fraction form
    25,956.54/38,978.55 = 25,752.42/x
  3. Step 3: Cross multiply
    25,956.54x = 38,978.55 × 25,752.42
  4. Step 4: Simplify right side
    25,956.54x = 1,003,791,990.59
  5. Step 5: Solve for x
    x = 1,003,791,990.59/25,956.54
  6. Step 6: Final answer
    x = 38,672.03

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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.