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Finding the Fourth Proportional to 2,347.78, 3,522 and 704.14

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Solution

The fourth proportional to 2,347.78, 3,522 and 704.14 is: 1,056.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,347.78 : 3,522 = 704.14 : x
  2. Step 2: Convert to fraction form
    2,347.78/3,522 = 704.14/x
  3. Step 3: Cross multiply
    2,347.78x = 3,522 × 704.14
  4. Step 4: Simplify right side
    2,347.78x = 2,479,981.08
  5. Step 5: Solve for x
    x = 2,479,981.08/2,347.78
  6. Step 6: Final answer
    x = 1,056.31

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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.