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Finding the Fourth Proportional to 2,417.51, 3,626.78 and 956.68

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Solution

The fourth proportional to 2,417.51, 3,626.78 and 956.68 is: 1,435.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,417.51 : 3,626.78 = 956.68 : x
  2. Step 2: Convert to fraction form
    2,417.51/3,626.78 = 956.68/x
  3. Step 3: Cross multiply
    2,417.51x = 3,626.78 × 956.68
  4. Step 4: Simplify right side
    2,417.51x = 3,469,654.04
  5. Step 5: Solve for x
    x = 3,469,654.04/2,417.51
  6. Step 6: Final answer
    x = 1,435.22

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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.