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Finding the Fourth Proportional to 3,372.65, 5,058.62 and 907.72

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Solution

The fourth proportional to 3,372.65, 5,058.62 and 907.72 is: 1,361.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,372.65 : 5,058.62 = 907.72 : x
  2. Step 2: Convert to fraction form
    3,372.65/5,058.62 = 907.72/x
  3. Step 3: Cross multiply
    3,372.65x = 5,058.62 × 907.72
  4. Step 4: Simplify right side
    3,372.65x = 4,591,825.22
  5. Step 5: Solve for x
    x = 4,591,825.22/3,372.65
  6. Step 6: Final answer
    x = 1,361.49

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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.