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Finding the Fourth Proportional to 2,062.59, 3,094.49 and 763.75

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Solution

The fourth proportional to 2,062.59, 3,094.49 and 763.75 is: 1,145.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,062.59 : 3,094.49 = 763.75 : x
  2. Step 2: Convert to fraction form
    2,062.59/3,094.49 = 763.75/x
  3. Step 3: Cross multiply
    2,062.59x = 3,094.49 × 763.75
  4. Step 4: Simplify right side
    2,062.59x = 2,363,416.74
  5. Step 5: Solve for x
    x = 2,363,416.74/2,062.59
  6. Step 6: Final answer
    x = 1,145.85

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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.