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Finding the Fourth Proportional to 2,166.63, 3,250.53 and 997.38

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Solution

The fourth proportional to 2,166.63, 3,250.53 and 997.38 is: 1,496.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.63 : 3,250.53 = 997.38 : x
  2. Step 2: Convert to fraction form
    2,166.63/3,250.53 = 997.38/x
  3. Step 3: Cross multiply
    2,166.63x = 3,250.53 × 997.38
  4. Step 4: Simplify right side
    2,166.63x = 3,242,013.61
  5. Step 5: Solve for x
    x = 3,242,013.61/2,166.63
  6. Step 6: Final answer
    x = 1,496.34

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1.5x scale

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.