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Finding the Fourth Proportional to 2,349, 3,518.82 and 1,423.98

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Solution

The fourth proportional to 2,349, 3,518.82 and 1,423.98 is: 2,133.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,349 : 3,518.82 = 1,423.98 : x
  2. Step 2: Convert to fraction form
    2,349/3,518.82 = 1,423.98/x
  3. Step 3: Cross multiply
    2,349x = 3,518.82 × 1,423.98
  4. Step 4: Simplify right side
    2,349x = 5,010,729.30
  5. Step 5: Solve for x
    x = 5,010,729.30/2,349
  6. Step 6: Final answer
    x = 2,133.13

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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.