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Finding the Fourth Proportional to 2,063.50, 3,094.95 and 764.74

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Solution

The fourth proportional to 2,063.50, 3,094.95 and 764.74 is: 1,147.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,063.50 : 3,094.95 = 764.74 : x
  2. Step 2: Convert to fraction form
    2,063.50/3,094.95 = 764.74/x
  3. Step 3: Cross multiply
    2,063.50x = 3,094.95 × 764.74
  4. Step 4: Simplify right side
    2,063.50x = 2,366,832.06
  5. Step 5: Solve for x
    x = 2,366,832.06/2,063.50
  6. Step 6: Final answer
    x = 1,147.00

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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.