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Finding the Fourth Proportional to 1,772.67, 2,661.06 and 952.55

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Solution

The fourth proportional to 1,772.67, 2,661.06 and 952.55 is: 1,429.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772.67 : 2,661.06 = 952.55 : x
  2. Step 2: Convert to fraction form
    1,772.67/2,661.06 = 952.55/x
  3. Step 3: Cross multiply
    1,772.67x = 2,661.06 × 952.55
  4. Step 4: Simplify right side
    1,772.67x = 2,534,792.70
  5. Step 5: Solve for x
    x = 2,534,792.70/1,772.67
  6. Step 6: Final answer
    x = 1,429.93

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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.