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Finding the Fourth Proportional to 25,289.67, 37,934.52 and 8,649.86

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Solution

The fourth proportional to 25,289.67, 37,934.52 and 8,649.86 is: 12,974.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,289.67 : 37,934.52 = 8,649.86 : x
  2. Step 2: Convert to fraction form
    25,289.67/37,934.52 = 8,649.86/x
  3. Step 3: Cross multiply
    25,289.67x = 37,934.52 × 8,649.86
  4. Step 4: Simplify right side
    25,289.67x = 328,128,243.92
  5. Step 5: Solve for x
    x = 328,128,243.92/25,289.67
  6. Step 6: Final answer
    x = 12,974.79

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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.