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Finding the Fourth Proportional to 1,949.17, 2,924.00 and 763.06

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Solution

The fourth proportional to 1,949.17, 2,924.00 and 763.06 is: 1,144.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.17 : 2,924.00 = 763.06 : x
  2. Step 2: Convert to fraction form
    1,949.17/2,924.00 = 763.06/x
  3. Step 3: Cross multiply
    1,949.17x = 2,924.00 × 763.06
  4. Step 4: Simplify right side
    1,949.17x = 2,231,177.12
  5. Step 5: Solve for x
    x = 2,231,177.12/1,949.17
  6. Step 6: Final answer
    x = 1,144.68

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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.