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Finding the Fourth Proportional to 2,166.94, 3,250.57 and 707.14

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Solution

The fourth proportional to 2,166.94, 3,250.57 and 707.14 is: 1,060.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.94 : 3,250.57 = 707.14 : x
  2. Step 2: Convert to fraction form
    2,166.94/3,250.57 = 707.14/x
  3. Step 3: Cross multiply
    2,166.94x = 3,250.57 × 707.14
  4. Step 4: Simplify right side
    2,166.94x = 2,298,608.07
  5. Step 5: Solve for x
    x = 2,298,608.07/2,166.94
  6. Step 6: Final answer
    x = 1,060.76

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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.