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Finding the Fourth Proportional to 65,372.64, 98,058.96 and 18,625.44

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Solution

The fourth proportional to 65,372.64, 98,058.96 and 18,625.44 is: 27,938.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,372.64 : 98,058.96 = 18,625.44 : x
  2. Step 2: Convert to fraction form
    65,372.64/98,058.96 = 18,625.44/x
  3. Step 3: Cross multiply
    65,372.64x = 98,058.96 × 18,625.44
  4. Step 4: Simplify right side
    65,372.64x = 1,826,391,275.94
  5. Step 5: Solve for x
    x = 1,826,391,275.94/65,372.64
  6. Step 6: Final answer
    x = 27,938.16

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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.