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Finding the Fourth Proportional to 1,657.26, 2,486.25 and 732.51

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Solution

The fourth proportional to 1,657.26, 2,486.25 and 732.51 is: 1,098.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657.26 : 2,486.25 = 732.51 : x
  2. Step 2: Convert to fraction form
    1,657.26/2,486.25 = 732.51/x
  3. Step 3: Cross multiply
    1,657.26x = 2,486.25 × 732.51
  4. Step 4: Simplify right side
    1,657.26x = 1,821,202.99
  5. Step 5: Solve for x
    x = 1,821,202.99/1,657.26
  6. Step 6: Final answer
    x = 1,098.92

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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.