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Finding the Fourth Proportional to 1,693.85, 2,539.55 and 962.42

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Solution

The fourth proportional to 1,693.85, 2,539.55 and 962.42 is: 1,442.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693.85 : 2,539.55 = 962.42 : x
  2. Step 2: Convert to fraction form
    1,693.85/2,539.55 = 962.42/x
  3. Step 3: Cross multiply
    1,693.85x = 2,539.55 × 962.42
  4. Step 4: Simplify right side
    1,693.85x = 2,444,103.42
  5. Step 5: Solve for x
    x = 2,444,103.42/1,693.85
  6. Step 6: Final answer
    x = 1,442.93

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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.