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Finding the Fourth Proportional to 10,297.80, 15,445.80 and 3,372.30

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Solution

The fourth proportional to 10,297.80, 15,445.80 and 3,372.30 is: 5,058.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,297.80 : 15,445.80 = 3,372.30 : x
  2. Step 2: Convert to fraction form
    10,297.80/15,445.80 = 3,372.30/x
  3. Step 3: Cross multiply
    10,297.80x = 15,445.80 × 3,372.30
  4. Step 4: Simplify right side
    10,297.80x = 52,087,871.34
  5. Step 5: Solve for x
    x = 52,087,871.34/10,297.80
  6. Step 6: Final answer
    x = 5,058.16

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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.