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Finding the Fourth Proportional to 8,591.90, 12,897.45 and 8,027.90

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Solution

The fourth proportional to 8,591.90, 12,897.45 and 8,027.90 is: 12,050.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,591.90 : 12,897.45 = 8,027.90 : x
  2. Step 2: Convert to fraction form
    8,591.90/12,897.45 = 8,027.90/x
  3. Step 3: Cross multiply
    8,591.90x = 12,897.45 × 8,027.90
  4. Step 4: Simplify right side
    8,591.90x = 103,539,438.86
  5. Step 5: Solve for x
    x = 103,539,438.86/8,591.90
  6. Step 6: Final answer
    x = 12,050.82

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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.