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Finding the Fourth Proportional to 1,267.46, 1,748.46 and 1,092.50

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Solution

The fourth proportional to 1,267.46, 1,748.46 and 1,092.50 is: 1,507.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267.46 : 1,748.46 = 1,092.50 : x
  2. Step 2: Convert to fraction form
    1,267.46/1,748.46 = 1,092.50/x
  3. Step 3: Cross multiply
    1,267.46x = 1,748.46 × 1,092.50
  4. Step 4: Simplify right side
    1,267.46x = 1,910,192.55
  5. Step 5: Solve for x
    x = 1,910,192.55/1,267.46
  6. Step 6: Final answer
    x = 1,507.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.