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Finding the Fourth Proportional to 18,590.63, 27,867.49 and 10,274.56

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Solution

The fourth proportional to 18,590.63, 27,867.49 and 10,274.56 is: 15,401.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,590.63 : 27,867.49 = 10,274.56 : x
  2. Step 2: Convert to fraction form
    18,590.63/27,867.49 = 10,274.56/x
  3. Step 3: Cross multiply
    18,590.63x = 27,867.49 × 10,274.56
  4. Step 4: Simplify right side
    18,590.63x = 286,326,102.70
  5. Step 5: Solve for x
    x = 286,326,102.70/18,590.63
  6. Step 6: Final answer
    x = 15,401.64

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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.