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Finding the Fourth Proportional to 1,926.54, 2,886.12 and 1,491.54

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Solution

The fourth proportional to 1,926.54, 2,886.12 and 1,491.54 is: 2,234.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926.54 : 2,886.12 = 1,491.54 : x
  2. Step 2: Convert to fraction form
    1,926.54/2,886.12 = 1,491.54/x
  3. Step 3: Cross multiply
    1,926.54x = 2,886.12 × 1,491.54
  4. Step 4: Simplify right side
    1,926.54x = 4,304,763.42
  5. Step 5: Solve for x
    x = 4,304,763.42/1,926.54
  6. Step 6: Final answer
    x = 2,234.45

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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.