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Finding the Fourth Proportional to 18,676.51, 27,945.54 and 14,967.47

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Solution

The fourth proportional to 18,676.51, 27,945.54 and 14,967.47 is: 22,395.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,676.51 : 27,945.54 = 14,967.47 : x
  2. Step 2: Convert to fraction form
    18,676.51/27,945.54 = 14,967.47/x
  3. Step 3: Cross multiply
    18,676.51x = 27,945.54 × 14,967.47
  4. Step 4: Simplify right side
    18,676.51x = 418,274,101.45
  5. Step 5: Solve for x
    x = 418,274,101.45/18,676.51
  6. Step 6: Final answer
    x = 22,395.73

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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.