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Finding the Fourth Proportional to 8,951.86, 12,359.26 and 6,123.95

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Solution

The fourth proportional to 8,951.86, 12,359.26 and 6,123.95 is: 8,454.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,951.86 : 12,359.26 = 6,123.95 : x
  2. Step 2: Convert to fraction form
    8,951.86/12,359.26 = 6,123.95/x
  3. Step 3: Cross multiply
    8,951.86x = 12,359.26 × 6,123.95
  4. Step 4: Simplify right side
    8,951.86x = 75,687,413.17
  5. Step 5: Solve for x
    x = 75,687,413.17/8,951.86
  6. Step 6: Final answer
    x = 8,454.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.