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Finding the Fourth Proportional to 2,094.80, 3,141.68 and 708.11

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Solution

The fourth proportional to 2,094.80, 3,141.68 and 708.11 is: 1,061.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,094.80 : 3,141.68 = 708.11 : x
  2. Step 2: Convert to fraction form
    2,094.80/3,141.68 = 708.11/x
  3. Step 3: Cross multiply
    2,094.80x = 3,141.68 × 708.11
  4. Step 4: Simplify right side
    2,094.80x = 2,224,644.13
  5. Step 5: Solve for x
    x = 2,224,644.13/2,094.80
  6. Step 6: Final answer
    x = 1,061.98

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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.