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Finding the Fourth Proportional to 3,174.53, 4,381.11 and 1,758.66

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Solution

The fourth proportional to 3,174.53, 4,381.11 and 1,758.66 is: 2,427.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.53 : 4,381.11 = 1,758.66 : x
  2. Step 2: Convert to fraction form
    3,174.53/4,381.11 = 1,758.66/x
  3. Step 3: Cross multiply
    3,174.53x = 4,381.11 × 1,758.66
  4. Step 4: Simplify right side
    3,174.53x = 7,704,899.34
  5. Step 5: Solve for x
    x = 7,704,899.34/3,174.53
  6. Step 6: Final answer
    x = 2,427.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.