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Finding the Fourth Proportional to 25,954.58, 38,934.42 and 6,978.98

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Solution

The fourth proportional to 25,954.58, 38,934.42 and 6,978.98 is: 10,469.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,954.58 : 38,934.42 = 6,978.98 : x
  2. Step 2: Convert to fraction form
    25,954.58/38,934.42 = 6,978.98/x
  3. Step 3: Cross multiply
    25,954.58x = 38,934.42 × 6,978.98
  4. Step 4: Simplify right side
    25,954.58x = 271,722,538.49
  5. Step 5: Solve for x
    x = 271,722,538.49/25,954.58
  6. Step 6: Final answer
    x = 10,469.16

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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.