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Finding the Fourth Proportional to 16,651.86, 24,990.06 and 7,886.76

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Solution

The fourth proportional to 16,651.86, 24,990.06 and 7,886.76 is: 11,835.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,651.86 : 24,990.06 = 7,886.76 : x
  2. Step 2: Convert to fraction form
    16,651.86/24,990.06 = 7,886.76/x
  3. Step 3: Cross multiply
    16,651.86x = 24,990.06 × 7,886.76
  4. Step 4: Simplify right side
    16,651.86x = 197,090,605.61
  5. Step 5: Solve for x
    x = 197,090,605.61/16,651.86
  6. Step 6: Final answer
    x = 11,835.95

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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.