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Finding the Fourth Proportional to 18,590.36, 27,885.87 and 6,752.53

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Solution

The fourth proportional to 18,590.36, 27,885.87 and 6,752.53 is: 10,128.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,590.36 : 27,885.87 = 6,752.53 : x
  2. Step 2: Convert to fraction form
    18,590.36/27,885.87 = 6,752.53/x
  3. Step 3: Cross multiply
    18,590.36x = 27,885.87 × 6,752.53
  4. Step 4: Simplify right side
    18,590.36x = 188,300,208.61
  5. Step 5: Solve for x
    x = 188,300,208.61/18,590.36
  6. Step 6: Final answer
    x = 10,128.92

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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.