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Finding the Fourth Proportional to 16,659.86, 24,989.76 and 4,347.86

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Solution

The fourth proportional to 16,659.86, 24,989.76 and 4,347.86 is: 6,521.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,659.86 : 24,989.76 = 4,347.86 : x
  2. Step 2: Convert to fraction form
    16,659.86/24,989.76 = 4,347.86/x
  3. Step 3: Cross multiply
    16,659.86x = 24,989.76 × 4,347.86
  4. Step 4: Simplify right side
    16,659.86x = 108,651,977.91
  5. Step 5: Solve for x
    x = 108,651,977.91/16,659.86
  6. Step 6: Final answer
    x = 6,521.78

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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.