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Finding the Fourth Proportional to 1,707.98, 2,562.02 and 667.94

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Solution

The fourth proportional to 1,707.98, 2,562.02 and 667.94 is: 1,001.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707.98 : 2,562.02 = 667.94 : x
  2. Step 2: Convert to fraction form
    1,707.98/2,562.02 = 667.94/x
  3. Step 3: Cross multiply
    1,707.98x = 2,562.02 × 667.94
  4. Step 4: Simplify right side
    1,707.98x = 1,711,259.49
  5. Step 5: Solve for x
    x = 1,711,259.49/1,707.98
  6. Step 6: Final answer
    x = 1,001.92

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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.