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Finding the Fourth Proportional to 18,676.77, 28,024.06 and 11,654.88

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Solution

The fourth proportional to 18,676.77, 28,024.06 and 11,654.88 is: 17,487.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,676.77 : 28,024.06 = 11,654.88 : x
  2. Step 2: Convert to fraction form
    18,676.77/28,024.06 = 11,654.88/x
  3. Step 3: Cross multiply
    18,676.77x = 28,024.06 × 11,654.88
  4. Step 4: Simplify right side
    18,676.77x = 326,617,056.41
  5. Step 5: Solve for x
    x = 326,617,056.41/18,676.77
  6. Step 6: Final answer
    x = 17,487.88

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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.