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Finding the Fourth Proportional to 13,755.99, 18,983.48 and 7,468.37

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Solution

The fourth proportional to 13,755.99, 18,983.48 and 7,468.37 is: 10,306.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.99 : 18,983.48 = 7,468.37 : x
  2. Step 2: Convert to fraction form
    13,755.99/18,983.48 = 7,468.37/x
  3. Step 3: Cross multiply
    13,755.99x = 18,983.48 × 7,468.37
  4. Step 4: Simplify right side
    13,755.99x = 141,775,520.27
  5. Step 5: Solve for x
    x = 141,775,520.27/13,755.99
  6. Step 6: Final answer
    x = 10,306.46

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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.