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Finding the Fourth Proportional to 7,372.40, 11,058.60 and 2,107.40

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Solution

The fourth proportional to 7,372.40, 11,058.60 and 2,107.40 is: 3,161.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,372.40 : 11,058.60 = 2,107.40 : x
  2. Step 2: Convert to fraction form
    7,372.40/11,058.60 = 2,107.40/x
  3. Step 3: Cross multiply
    7,372.40x = 11,058.60 × 2,107.40
  4. Step 4: Simplify right side
    7,372.40x = 23,304,893.64
  5. Step 5: Solve for x
    x = 23,304,893.64/7,372.40
  6. Step 6: Final answer
    x = 3,161.10

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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.