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Finding the Fourth Proportional to 2,466.48, 3,699.62 and 822.90

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Solution

The fourth proportional to 2,466.48, 3,699.62 and 822.90 is: 1,234.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,466.48 : 3,699.62 = 822.90 : x
  2. Step 2: Convert to fraction form
    2,466.48/3,699.62 = 822.90/x
  3. Step 3: Cross multiply
    2,466.48x = 3,699.62 × 822.90
  4. Step 4: Simplify right side
    2,466.48x = 3,044,417.30
  5. Step 5: Solve for x
    x = 3,044,417.30/2,466.48
  6. Step 6: Final answer
    x = 1,234.32

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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.