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Finding the Fourth Proportional to 13,960.99, 20,945.13 and 4,602.43

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Solution

The fourth proportional to 13,960.99, 20,945.13 and 4,602.43 is: 6,904.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,960.99 : 20,945.13 = 4,602.43 : x
  2. Step 2: Convert to fraction form
    13,960.99/20,945.13 = 4,602.43/x
  3. Step 3: Cross multiply
    13,960.99x = 20,945.13 × 4,602.43
  4. Step 4: Simplify right side
    13,960.99x = 96,398,494.67
  5. Step 5: Solve for x
    x = 96,398,494.67/13,960.99
  6. Step 6: Final answer
    x = 6,904.85

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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.