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Finding the Fourth Proportional to 2,372.48, 3,556 and 910.88

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Solution

The fourth proportional to 2,372.48, 3,556 and 910.88 is: 1,365.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,372.48 : 3,556 = 910.88 : x
  2. Step 2: Convert to fraction form
    2,372.48/3,556 = 910.88/x
  3. Step 3: Cross multiply
    2,372.48x = 3,556 × 910.88
  4. Step 4: Simplify right side
    2,372.48x = 3,239,089.28
  5. Step 5: Solve for x
    x = 3,239,089.28/2,372.48
  6. Step 6: Final answer
    x = 1,365.28

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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.