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Finding the Fourth Proportional to 1,167.63, 1,748.02 and 1,098.26

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Solution

The fourth proportional to 1,167.63, 1,748.02 and 1,098.26 is: 1,644.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167.63 : 1,748.02 = 1,098.26 : x
  2. Step 2: Convert to fraction form
    1,167.63/1,748.02 = 1,098.26/x
  3. Step 3: Cross multiply
    1,167.63x = 1,748.02 × 1,098.26
  4. Step 4: Simplify right side
    1,167.63x = 1,919,780.45
  5. Step 5: Solve for x
    x = 1,919,780.45/1,167.63
  6. Step 6: Final answer
    x = 1,644.17

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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.