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Finding the Fourth Proportional to 13,886.64, 20,823.48 and 8,044.92

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Solution

The fourth proportional to 13,886.64, 20,823.48 and 8,044.92 is: 12,063.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886.64 : 20,823.48 = 8,044.92 : x
  2. Step 2: Convert to fraction form
    13,886.64/20,823.48 = 8,044.92/x
  3. Step 3: Cross multiply
    13,886.64x = 20,823.48 × 8,044.92
  4. Step 4: Simplify right side
    13,886.64x = 167,523,230.72
  5. Step 5: Solve for x
    x = 167,523,230.72/13,886.64
  6. Step 6: Final answer
    x = 12,063.63

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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.