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Finding the Fourth Proportional to 1,653.86, 2,481.20 and 1,167.86

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Solution

The fourth proportional to 1,653.86, 2,481.20 and 1,167.86 is: 1,752.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,653.86 : 2,481.20 = 1,167.86 : x
  2. Step 2: Convert to fraction form
    1,653.86/2,481.20 = 1,167.86/x
  3. Step 3: Cross multiply
    1,653.86x = 2,481.20 × 1,167.86
  4. Step 4: Simplify right side
    1,653.86x = 2,897,694.23
  5. Step 5: Solve for x
    x = 2,897,694.23/1,653.86
  6. Step 6: Final answer
    x = 1,752.08

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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.