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Finding the Fourth Proportional to 3,174.89, 4,761.22 and 953.06

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Solution

The fourth proportional to 3,174.89, 4,761.22 and 953.06 is: 1,429.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.89 : 4,761.22 = 953.06 : x
  2. Step 2: Convert to fraction form
    3,174.89/4,761.22 = 953.06/x
  3. Step 3: Cross multiply
    3,174.89x = 4,761.22 × 953.06
  4. Step 4: Simplify right side
    3,174.89x = 4,537,728.33
  5. Step 5: Solve for x
    x = 4,537,728.33/3,174.89
  6. Step 6: Final answer
    x = 1,429.26

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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.