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Finding the Fourth Proportional to 1,752.14, 2,627.47 and 961.30

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Solution

The fourth proportional to 1,752.14, 2,627.47 and 961.30 is: 1,441.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,752.14 : 2,627.47 = 961.30 : x
  2. Step 2: Convert to fraction form
    1,752.14/2,627.47 = 961.30/x
  3. Step 3: Cross multiply
    1,752.14x = 2,627.47 × 961.30
  4. Step 4: Simplify right side
    1,752.14x = 2,525,786.91
  5. Step 5: Solve for x
    x = 2,525,786.91/1,752.14
  6. Step 6: Final answer
    x = 1,441.54

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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.