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Finding the Fourth Proportional to 25,658.30, 38,483.73 and 6,939.42

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Solution

The fourth proportional to 25,658.30, 38,483.73 and 6,939.42 is: 10,408.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,658.30 : 38,483.73 = 6,939.42 : x
  2. Step 2: Convert to fraction form
    25,658.30/38,483.73 = 6,939.42/x
  3. Step 3: Cross multiply
    25,658.30x = 38,483.73 × 6,939.42
  4. Step 4: Simplify right side
    25,658.30x = 267,054,765.64
  5. Step 5: Solve for x
    x = 267,054,765.64/25,658.30
  6. Step 6: Final answer
    x = 10,408.13

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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.