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Finding the Fourth Proportional to 1,511.64, 2,266.74 and 537.48

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Solution

The fourth proportional to 1,511.64, 2,266.74 and 537.48 is: 805.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.64 : 2,266.74 = 537.48 : x
  2. Step 2: Convert to fraction form
    1,511.64/2,266.74 = 537.48/x
  3. Step 3: Cross multiply
    1,511.64x = 2,266.74 × 537.48
  4. Step 4: Simplify right side
    1,511.64x = 1,218,327.42
  5. Step 5: Solve for x
    x = 1,218,327.42/1,511.64
  6. Step 6: Final answer
    x = 805.96

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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.